Before you continue
Before submitting a bug report, please review our troubleshooting documentation at Troubleshoot Issues | Vega Troubleshooting
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
Playback blacks out if nested Modals are open, on specific device models only. Audio continues playing. Affected devices we found: LG Monitor 34UC98-W, LG TV 43LM5700PUA.
We use nested modals for context menus. We apply an opacity layer over the playback when menus are open, but the behavior persists if we remove this layer.
Issue can be observed in the current App Store version.
App Name: Fubo
App Link on Amazon Appstore (found through Developer Console → Actions column in App List → View on Amazon.com): 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
Install Fubo from the app storeStart Playback- Press the Gears icon button at the right end of the player interface
- In the menu, select Video Quality to open the nested menu.
3. Observed Behavior
Explain what actually happened, noting any discrepancies or malfunctions.
On affected device model, video turns black. Audio continues to play
4. Expected Behavior
Describe what you expected the SDK to do under normal operation.
Video playback remains visible
4.a Possible Root Cause & Temporary Workaround
Fill out anything you have tried. If you don’t know, N/A is acceptable
HDCP related possibly
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
-
For issues with Vega Studio Extension, please share log files from below folders:
For v0.22+:~/.vscode/extensions/amazon.vega-extension-<version>/ExtensionLogs ~/.vscode/extensions/amazon.vega-ui-extension-<version>/ExtensionLogsFor v0.21 and earlier:
~/.vscode/extensions/amazon.kepler-extension-<version>/ExtensionLogs ~/.vscode/extensions/amazon.kepler-ui-extension-<version>/ExtensionLogs
6. Environment
Please fill out the fields related to your bug below:
- SDK Version: Run
vega --version(v0.22+) orkepler --version(v0.21 and earlier) and paste output
Active SDK Version: 0.22.6150
Vega CLI Version: 1.2.18
-
App State: Foreground
-
OS Information: Please ssh into the device via
vega exec vda shell(orkepler exec vda shellfor v0.21 and earlier) and copy the output fromcat /etc/os-releaseinto the answer section below. Note, if you don’t have a simulator running or device attached, the command will respond withvda: no devices/emulators foundNAME="OS" OE_VERSION="4.0.0" OS_MAJOR_VERSION="1" OS_MINOR_VERSION="1" RELEASE_ID="14" OS_VERSION="1.1" BRANCH_CODE="TV Ship day60" BUILD_DESC="OS 1.1 (TV Ship day60/102)" BUILD_FINGERPRINT="4.0.253712.0(3072cab629675a74)/102N:user/release-keys" BUILD_VARIANT="user" BUILD_TAGS="release-keys" BUILD_DATE="Fri Mar 20 21:10:28 UTC 2026" BUILD_TIMESTAMP="1774041028" VERSION_NUMBER="1401010010220"
7. Example Code Snippet / Screenshots / Screengrabs
Include any relevant code or component setup in React Native that can help reproduce the bug.
import { ExampleComponent } from 'custom-sdk';
<ExampleComponent config={{ key: 'value' }} />
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.
Affects all content
Please share the following details in addition:_
- Player SDK:
Shaka - Player SDK Version:
[e.g. 1.23]- Audio Codecs:
[AAC, ...] - Video Codecs:
[h.264, mp4] - Manifest Types:
[m3u8, dash, etc ..]
- Audio Codecs:
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
[N/A or Content / Media Url for testing]
Q: Are there any special headers required to reproduce the issue you are facing?
[N/A or Insert Headers]
Additionally please provide the following if possible
Provide Screenshots / Screengrabs / Logs. Please include as much information as you can that will help debug.
<!-- Answer here if applicable -->
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.
<!-- Answer here if applicable -->