# Indefinite Playback Stall after seeking backwards beyond buffered media range **URL:** \ **Category:** Bug Reports\ **Created:** [June 2, 2026, 6:52pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480 "2026-06-02T18:52:01Z")\ **Posts on this page:** 6\ **Page:** 1

**Author:** ![Kyle\_Seager](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@Kyle\_Seager](https://community.amazondeveloper.com/u/Kyle_Seager)\ **Post date:** [June 2, 2026, 6:52pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480/1 "2026-06-02T18:52:02Z")

# ⚠ Before you continue * * * _Before submitting a bug report, please review our troubleshooting documentation at_ [Troubleshoot Issues | Vega Troubleshooting](https://developer.amazon.com/docs/vega/0.21/troubleshoot-overview.html) _If you still want to file a bug report, please make sure to fill in all the details below and provide the necessary information._ **NOTE: PLEASE ONLY REPORT A SINGLE BUG USING THIS TEMPLATE.** _If you’re experiencing multiple issues, please file a separate report for each._ * * * # 👉 Bug Description * * * ## 1. Summary After building up buffered media for LIVE content and performing a backward seek beyond back buffer, the Video Player gets stuck in buffering state indefinitely. **App Name** : **App Link on Amazon Appstore** (found through Developer Console → Actions column in App List → View on [Amazon.com](http://Amazon.com)): **Bug Severity** Select one that applies - Impacts operation of app - Blocks current development - Improvement suggestion - Issue with documentation (If selected, please share the doc link and describe the issue) - Other ## 2. Steps to Reproduce 1. Launch Live content 2. Let it play for 3 minutes or so to build up the buffer 3. Press the rewind button on the remote control. 4. Let the player marker reach the beginning of the buffer. 5. The issue will happen after few seconds. ## 3. Observed Behavior _Explain what actually happened, noting any discrepancies or malfunctions._ ```auto After seeking backwards to unbuffered range, and HLS.js appends media to media source. Player reports that it's playing, however the player gets stuck indefinitely. ``` ## 4. Expected Behavior _Describe what you expected the SDK to do under normal operation._ ```auto We expect playback to resume after seeking and appending media to MediaSource. ``` ### 4.a Possible Root Cause & Temporary Workaround _Fill out anything you have tried. If you don’t know, N/A is acceptable_ ```auto Nudging the playhead position forward after getting stuck resolves the stall. ``` ## 5. Logs or crash report _**`(Please make sure to provide relevant logs as attachment)`**_ For crash issues, please refer this guide for faster troubleshooting: [Detect Where the App Crash Originates | Design and Develop Vega Apps](https://developer.amazon.com/docs/vega/0.21/detect-crash.html) [Device Logs - 192.168.132.102\_5555.log](https://community.amazondeveloper.com/uploads/short-url/slg91SLD0eZ0Lome0dGytsQSHQW.log) (3.1 MB) ## 6. Environment _Please fill out the fields related to your bug below:_ - **SDK Version:** 0.22.5850 - **App State:** `Foreground` - **OS Information:** Please ssh into the device via `vega exec vda shell` (or `kepler exec vda shell` for v0.21 and earlier) and copy the output from `cat /etc/os-release` into the answer section below. Note, if you don’t have a simulator running or device attached, the command will respond with _`vda: no devices/emulators found`_ ## 7. Example Code Snippet / Screenshots / Screengrabs _Include any relevant code or component setup in React Native that can help reproduce the bug._ ```auto N/A ``` * * * ## 👉 Playback Issues * * * _If this is a playback issue, please provide your content URL, any pre-conditions (like geo-location), and let us know if it’s x86 or arm7._ ```auto N/A ``` Please share the following details in addition:\_ - **Player SDK:** `HLS.js` - **Player SDK Version:** `1.6.10` - **Audio Codecs:** `[AAC]` - **Video Codecs:** `[h.264]` - **Manifest Types:** `[m3u8]` **Q: If applicable, please provide your media/content url** _If this is created dynamically, tokenized, etc please provide a way for us to access it_ ```auto N/A ``` **Q: Are there any special headers required to reproduce the issue you are facing?** ```auto [N/A ``` **Additionally please provide the following if possible** _Provide Screenshots / Screengrabs / Logs. Please include as much information as you can that will help debug._ ```auto N/A ``` * * * ## 👉 Additional Context * * * **Any Additional Context you would like to provide?** _Add any other relevant information, such as recent updates to the SDK, dependencies, or device OS that may affect the bug._ ```auto We will provide a build to Amazon via external channel. ``` ---

**Author:** ![amen](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@amen](https://community.amazondeveloper.com/u/amen)\ **Post date:** [June 2, 2026, 10:24pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480/4 "2026-06-02T22:24:54Z")

Hi @Kyle_Seager , Thank you for the detailed bug report on the indefinite playback stall after seeking backwards beyond the buffered range. **What’s happening:** We’ve analyzed the device logs. After your seek to 3622s completes and playback begins, HLS.js removes the old forward buffer ([3667+]) via SourceBuffer.remove(). At this point, the native MSE pipeline’s internal read-head pointers were still referencing samples in that old region (from before the seek). The removal triggers an internal “Pending Seeking” to the now-deleted timestamps (3667.729s for video, 3667.665s for audio), which corrupts the pipeline state. **The result:** the GStreamer decoder starves (sampleQueueDepth stuck at 98 \< 400 threshold), get\_media\_time reports the actual time going backwards vs. the last reported time, and the pipeline clamps - so currentTime freezes at 3625.655 permanently despite 24+ seconds of data being buffered ahead. This is a issue in the TrackBufferImpl read-head management during SourceBuffer.remove() after a seek. In the meantime, your workaround of nudging the playhead forward is correct. You can also automate it with a stall-detection timer after seeked events. Our team is investigating this issue and will provide an update as soon as we have more information. Thanks for helping us improve the Vega platform. Warm regards, Aishwarya ---

**Author:** ![amen](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@amen](https://community.amazondeveloper.com/u/amen)\ **Post date:** [July 28, 2026, 10:25pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480/5 "2026-07-28T22:25:45Z")

Hi @Kyle_Seager, Thank you for your patience. Our team is continuing to investigate this issue. To help us with the analysis, could you confirm: 1. Did this issue start after upgrading HLS.js from 1.5.17 to 1.6.10? 2. In your rewind implementation, does the app trigger a `pause()` as soon as `canplay` fires after a seek completes? 3. When committing the rewind, is the seek position being sent one that may have already expired from the live window? We will provide an update as soon as we have more information. Thanks for helping us improve the Vega platform. Warm regards, Aishwarya ---

**Author:** ![amen](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@amen](https://community.amazondeveloper.com/u/amen)\ **Post date:** [August 14, 2026, 8:11pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480/6 "2026-08-14T20:11:52Z")

Hi @Kyle_Seager, I wanted to follow up on my previous message regarding the indefinite playback stall issue. We still need your input on the 3 questions to unblock this investigation. Thanks, Aishwarya ---

**Author:** ![amen](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@amen](https://community.amazondeveloper.com/u/amen)\ **Post date:** [October 15, 2026, 7:12pm UTC](https://community.amazondeveloper.com/t/indefinite-playback-stall-after-seeking-backwards-beyond-buffered-media-range/28480/7 "2026-10-15T19:12:32Z")

Closing this topic for now due to inactivity since we haven’t had the clarifications. ---