Resolved issues in version 2.27 and 3.27

The Version column shows the point release that the issue applies to.

Resolved issues in Elemental Live 2.27

The following table lists the resolved issues in Elemental Live 2.27.

Version	Key	Topic	Description
2.27.5	GLV-7202	Captions, SCTE-35	Previously, SCTE-35 messages with a non-zero pts_adjustment field were not being output when processed through the ESAM pipeline. This issue has been fixed.
2.27.5	GLV-7194	Event processing	Previously, editing an event with an audio selector group could cause the preview to break. This issue has been fixed.
2.27.5	GLV-6577	Outputs, encoding	Previously, the field_based_flag value was not being set correctly for AVC interlaced encodes. This has been corrected for improved spec compliance.
2.27.5	GLV-6798	Platform, database	Previously, the sessions database table could encounter limitations with very high usage over time. The primary key has been migrated to support larger values.
2.27.5	GLV-7083	Platform, imports	Previously, importing event XML files from older software versions could fail. An automatic upgrade process has been added to handle older XML formats during import.
2.27.5	V2159100448	Platform	Previously, repeated privileged operations on systems running RHEL 9.6 could cause a gradual increase in kernel slab memory usage over time. This issue has been fixed.
2.27.5	P391933808	Outputs, CMAF	Previously, CMAF outputs with Dolby content could fail validation unnecessarily. Validation has been updated to allow CMAF outputs past Dolby validation where appropriate.
2.27.5	P375412968	Outputs, CMAF	Previously, MP4/CMAF outputs with EC-3 or AC-3 audio could have an incorrect track count in the sample description. This issue has been fixed.
2.27.5	P381199744	Captions, SCTE-35	Previously, when ESAM returned late for immediate splice insert or time signal events, the start time was not adjusted. Changes have been made to move the start time forward in this situation.
2.27.5	V2041197194	Event processing	Previously, stopping an event could result in a gradual increase in memory usage over time. This issue has been fixed.
2.27.5	V1994113448	Event processing	Previously, unexpired SCTE-35 network end/start messages could be processed incorrectly. This issue has been fixed.
2.27.5	EMM-4248	Event processing	In certain situations, H.264 auPPS and auSPS field parsing could cause event processing errors. This issue has been fixed.
2.27.5	828de255b9c	Inputs, SMPTE 2110	Previously, SMPTE 2110 setup could fail when hyperthreading was disabled. This has been fixed to handle the configuration more gracefully.
2.27.4	GLV-7161	Platform, Downgrades	Previously, license files could be lost during software downgrades. Changes have been made to preserve license files from existing installations when performing downgrades.
2.27.4	GLV-2849	Inputs, RTMP	Previously, an event could crash when an RTMP pull input was disconnected, such as during a stop or input switch. This issue has been fixed.
2.27.4	GLV-7090	Outputs, SRT	SRT output could block indefinitely in some instances. Send timeout and buffer size configuration has been added for reliable transport stream SRT senders to prevent blocking.
2.27.4	GLV-7116	Outputs, CMAF Ingest	The CMAF Ingest destinations have been updated for better path handling.
2.27.4	GLV-6993	Event processing	Previously, input pipeline preparation could fail to reset properly when cancelled for perpetually decoded inputs. This issue has been fixed.
2.27.4	GLV-7132	Platform, NMOS	Previously, there was an issue with null sender IDs in NMOS implementation. This issue has been resolved.
2.27.4	GLV-5513	Event processing	A timeout has been added to prevent indefinite blocking during event processing operations.
2.27.4	GLV-7074	Event processing	Frame sync black fill behavior has been improved to differentiate between active and ended input states.
2.27.4	GLV-7081	SCTE-35	Previously, SCTE-35 NotIndicated signals could cause HLS segment doubling. This issue has been fixed.
2.27.4	GLV-3400	SCTE-35	Excessive "Does not contain an avail" messages could be generated in certain workflows. Message frequency has been limited to reduce log noise.
2.27.4	GLV-7109	Captions, CMAF Ingest	Previously, embedded captions could interfere with MediaPackage v2/CMAF frame capture functionality. This issue has been resolved.
2.27.4	EMM-4062	Outputs, CMAF Ingest	CMAF Ingest segment numbers could be incorrect after event stop/start operations. This issue has been fixed.
2.27.4	LIVESEC-12	API	Stricter validations on /devices/{device_id}/preview endpoint now restrict image locations to the /public/images/preview directory and filenames to alphanumeric characters.
2.27.4	GLV-7083	NMOS	Previously, importing an XML with a 2110 receiver group input without a corresponding shadow input required manual correction. The import process now automatically adds the shadow input.
2.27.4	GLV-7185	Platform	The latest Red Hat security patches have been applied. We continue to apply Red Hat security patches to keep the appliance secure, in accordance with the shared responsibility model.
2.27.3	GLV-6571	API	The playlist API endpoint (used to create a playlist of inputs to ingest) can sometimes result in a 500 error code. This issue has been fixed.
2.27.3	GLV-6342	Data delivery	Previously, large file transfers to Amazon S3 could fail because the transfer timed out. The timeout has been increased.
2.27.3	GLV-6662	Data delivery	Previously, data transfers over slower connections could fail. This issue has been fixed.
2.27.3	GLV-6947	Deleting events	Previously, archived events sometimes didn't get deleted on the expected date. This issue has been fixed.
2.27.3	GLV-6363	Input preview	Sometimes input preview didn't appear when it was enabled. This issue has been fixed.
2.27.3	GLV-6944	Inputs, SMPTE 2110 with NMOS	There was an issue with patching of a SMPTE 2110 input that uses NMOS. If user authentication was enabled, the patch didn't occur. This issue has been fixed.
2.27.3	GLV-6714	Outputs, RTMP	There was an issue when creating an RTMP output group by duplicating an event or using a Conductor Live profile. Some settings didn't get copied over. This issue has been fixed.
2.27.3	GLV-5843	Performance	The resource allocation logic on Elemental Live, Elemental Statmux, and Conductor Live has been raised to prevent event crashes.
2.27.3	GLV-6383	Platform, downgrades	Previously, a downgrade to Elemental Live 2.27.0 might fail. This issue has been fixed.
2.27.3	GLV-6350	Platform, upgrades	There was an issue with events not automatically restarting after upgrading the software. This issue has been fixed.
2.27.2	GLV-2972	Authentication	A recent change inadvertently introduced the rule that if authentication was enabled, only users with the Admin role could download the XML from the web interface or using the API. This issue has been fixed so that any authenticated user can perform these actions.
2.27.2	GLV-5785	Captions, EBU-TT and TTML	Previously, Live might omit or skip some non-ASCII characters when encoding captions into TTML/EBU-TT format. This problem has been fixed.
2.27.2	GLV-5843	Event crash	Previously, a node might crash when a lot of events were running. Changes have been made to prevent the crash in this situation.
2.27.2	GLV-4829	Event crash	Previously, MXF archive output used in conjunction with WAV audio output could cause crashes. This problem has been fixed.
2.27.2	GLV-5881	Inputs, Dolby	Previously, there was an issue with handling Dolby audio input. The issue forced the user to restart the event. The issue has been fixed. In addition, a change has been made to reduce the number of log messages when problems like this one occur.
2.27.2	GLV-6069	Inputs, SMPTE 2110	ST 2110-30 output timing handling has been adjusted to be more resilient when faced with input timing disruptions.
2.27.2	GLV-5889	Platform, downgrade	Previously, there was an issue that prevented a downgrade from 2.27.1 to 2.26.5. This issue has been fixed.
2.27.2	GLV-5432	XML import	An issue has been corrected that prevented the import of a Live event XML file that included a SMPTE 2110 input.
2.27.1	GLV-525	Alerts, logs, and messages	Loudness log files will now be retained for 30 days (by default) before being deleted from the appliance. The retention period is configurable in the Settings > General tab, and cleanup can be disabled by setting to 0 days.
2.27.1	GLV-2606	Backup files	TGF files will now be retained for 30 days (by default) before being deleted from the appliance. The retention period is configurable in the Settings > General tab, and cleanup can be disabled by setting to 0 days.
2.27.1	GLV-5696	Captions, EBU-TT-D	In Live 2.27.0, the calculation of tts:lineHeight in EBU-TT-D captions outputs was incorrect. This error caused the text to appear noticeably larger. This issue has been fixed.
2.27.1	GLV-5241	HLS manifests	Fixed an issue where pausing and unpausing an output group could result in partial HLS parent manifests being written.
2.27.1	GLV-5816	Inputs, SDI	In Live 2.27.0, the configuration of ancillary data (SCTE 35 messages) in an SDI input was reset when the channel was started. This caused any channel that was already running to stop ingesting ancillary data. This issue has been fixed.
2.27.1	GLV-5545	Inputs, SMPTE 2110	Fixed an issue where new NMOS events weren't being imported properly.
2.27.1	GLV-5677	Inputs, SMPTE 2110	Previously, the system status API didn't apply to 2110 inputs configured with NMOS receiver groups, or with SDI input groups. This meant that it wasn't possible to verify the status of these inputs. This issue has been fixed.
2.27.1	GLV-5764	Inputs, SMPTE 2110 with NMOS	There was an issue when importing the XML for an event, when the event included configuration for a 2110 NMOS input. Elemental Live didn't handle the audio selectors correctly. This issue has been fixed.
2.27.1	GLV-3024	Motion graphic overlays	Previously, Elemental Live might lose AV Sync if motion graphics overlays were enabled and many input switches happened. Additionally, there was a memory leak with MOV motion graphics. Both of these issues have been fixed.
2.27.1	GLV-5382	Motion graphic overlays	Fixed an issue where motion graphics insertion would stop on looping inputs after the first input switch.
2.27.1	GLV-5609	Outputs, CMAF ingest	Previously, Elemental Live was incorrectly validating against output name modifiers across different CMAF Ingest output groups. Now, Live enforces modifier name uniqueness only within each output group.
2.27.1	GLV-5383	Outputs, SRT	Increased the send delay for SRT outputs to 4 seconds. Now, after a successful connection, Elemental Live attempts to send data for 4 seconds before timing out.
2.27.1	GLV-5610	Outputs, SRT	The passphrase length for SRT outputs has been increased from 72 characters to 80 characters.
2.27.1	GLV-5257	Video	Fixed an issue where Elemental Live was not always inserting RAI markers per specification.
2.27.1	GLV-5763	Web interface	In Elemental Live 2.27.0, you couldn't save changes to settings in the Settings > General page. This issue has been fixed.
2.27.0	GLV-4662	Alerts and logging	Improved logging of SCTE 35 handling, to include a unique ID. This ID makes it easier to trace processing of customer SCTE 35 messages through the transcoding pipeline.
2.27.0	GLV-5070	Alerts and logging	There is improved logging during the assignment of output PIDs to used input streams.
2.27.0	GLV-4669	Alerts and logs	Logs for NMOS and motion graphics could grow indefinitely. There is now a limit to the number and size of these logs.
2.27.0	GLV-4749	Alerts and logs	Fixed an issue where the logs in /opt/elemental_se/web/log on Conductor Live were not correctly rotated.
2.27.0	GLV-5097	Alerts and logs	Unnecessary messages have been removed from the logs.
2.27.0	GLV-5262	Alerts and logs	SVQ is defined by the encoder favoring speed over quality. Diagnostic logging has been improved when SVQ occurs.
2.27.0	GLV-5367	Alerts and logs	Fixed an issue where missing IDs on deferred caption stores could cause spamming in logs.
2.27.0	GLV-4847	Audio	Fixed an issue where normalized mono audio can begin to slowly decay towards silence.
2.27.0	GLV-3763	Audio-only outputs	There was an issue with HLS audio-only outputs whereby the media segments were faster than real time. This issue has been fixed.
2.27.0	GLV-2571	Captions, EBU-TT-D	Previously, the data included in EBU-TT-D captions outputs had unreferenced (and unnecessary) style and region elements. This data has been removed.
2.27.0	GLV-2572	Captions, EBU-TT-D	Previously, the data included in EBU-TT-D captions outputs had the style elements in both the body and paragraph sections. Now, the tts:fontSize and tts:lineHeight appear only in the paragraph <p> sections.
2.27.0	GLV-5404	Epoch locking	Very rarely, epoch locked events could crash. The underlying issue has been fixed.
2.27.0	GLV-5172	Inputs, RTP	There was an issue when a Live event with an RTP FEC input is erroneously sent streams from two different sources at the same time. The log might get filled with misleading messages about a change in the FEC protection parameters. This issue has been fixed.
2.27.0	GLV-3705	Motion graphics	Fixed an issue where motion graphics might render with an incorrect hue.
2.27.0	GLV-5039	NMOS	When upgrading from Live 2.26.1 to Live 2.26.4 or later, NMOS could stop working. This issue has been fixed.
2.27.0	GLV-4280	NMOS 2110	Live events with NMOS-controlled 2110 outputs sometimes would not appear in the NMOS network. This issue has been fixed.
2.27.0	GLV-4454	NMOS 2110	Fixed an issue whereby changing the secondary interface on a 2110 Receiver Group would not update the NMOS receiver.
2.27.0	GLV-4656	Output listening	There was an issue with Live's handling of output when output listening is enabled. The output bandwidth was unexpectedly high. This issue has been fixed.
2.27.0	GLV-4856	Outputs, CMAF Ingest	Fixed an issue in CMAF Ingest outputs where video and audio segments didn't align when video had non-integer framerate.
2.27.0	GLV-5301	Outputs, SRT	There was an issue where SRT output connection failures resulted in the encoder favoring speed over quality. This SVQ resulted in alarms. The issue has been resolved.
2.27.0	GLV-5312	Outputs, Zixi	Fixed an issue where secondary Zixi outputs failed to initialize correctly.
2.27.0	GLV-5334	Platform	The operating system has been upgraded from RHEL 9.2 to RHEL 9.4.
2.27.0	GLV-5175	PTS	There was an issue where the PTS adjustment was set to 0. Elemental Live still performed the adjustment on some messages. This issue has been fixed.
2.27.0	GLV-4729	SCTE 35	Fixed a case where long Network Start blackouts didn't work properly.
2.27.0	GLV-4850	SCTE 35	Previously, some SCTE 104 messages in a 2110 input might not get successfully converted. This issue has been fixed.
2.27.0	GLV-5116	SCTE 35	There was an issue when an event includes SMPTE 2110 input and the SMPTE 2110 ancillary stream carries a SCTE 104 message in which the duration_extension_frames field is non-zero. The duration calculated for the number of frames was incorrect. This issue has been fixed.
2.27.0	GLV-5370	SCTE 35	Fixed an issue where resynching could cause empty SCTE 35 segments in CMAF Ingest outputs.
2.27.0	GLV-5226	SDI	Fixed an issue with the SDI router.

Resolved issues in Statmux 2.27

The following table lists the resolved issues in Statmux 2.27.

Version	Key	Topic	Description
2.27.3	GLV-5843	Performance	The resource allocation logic on Elemental Live, Elemental Statmux, and Conductor Live has been raised to prevent event crashes.
2.27.1	GLV-5763	Web interface	In Elemental Statmux 2.27.0, you couldn't save changes to settings in the Settings > General page. This issue has been fixed.
2.27.0	GLV-5070	Alerts and logging	There is improved logging during the assignment of output PIDs to used input streams.
2.27.0	GLV-5333	Virtual IPs	Fixed an issue where Statmux crashed when using virtual source IPs.

Resolved issues in Conductor Live 3.27

The following table lists the resolved issues in Conductor Live 3.27.

Version	Key	Topic	Description
3.27.3	GLV-5754	Deleting profiles	Previously, it was not possible to delete Conductor Live profiles that used SMPTE 2110 inputs. This issue has been fixed.
3.27.3	GLV-6619	Inputs, SMPTE 2110 with NMOS	There was a problem with updating Conductor Live profiles on SMPTE 2110 inputs that use NMOS. The problem resulted in an error in the web interface. This issue has been fixed.
3.27.3	GLV-6714	Outputs, RTMP	There was an issue when creating an RTMP output group by duplicating an event or using a Conductor Live profile. Some settings didn't get copied over. This issue has been fixed.
3.27.3	GLV-5843	Performance	The resource allocation logic on Elemental Live, Elemental Statmux, and Conductor Live has been raised to prevent event crashes.
3.27.1	GLV-4997	Alerts, logs, and messages	Fixed an issue where some alerts were not clearing properly after channels were stopped or restarted.
3.27.0	GLV-3720	Schedule	Fixed an issue where the user couldn't enable schedules in Conductor Live.
3.27.0	GLV-5385	Upgrading	Sometimes a channel would not restart after an upgrade of the Conductor node. This issue has been fixed.