Video tiles overlapping in Speaker and Gallery view (UI Toolkit 2.2.5, Windows only)

Video SDK Type and Version

  • Video SDK (Web) – UI Toolkit, no css applied on parent container
  • Version: 2.2.5
  • Platform: Windows
  • Browsers: Chrome, Edge, Firefox
  • Framework: React

Description

We are facing a consistent layout bug in UI Toolkit 2.2.5 where:

  • Speaker View: Active speaker tile overlaps participant column
  • Gallery View: Tiles overlap instead of rendering in a grid
  • Switching views does not fix layout (state persists)

This issue is:

  • Reproducible across all major browsers on Windows
  • Not reproducible on macOS
  • Occurring even with minimal setup and no custom CSS

Error?

No console errors or SDK errors.


Troubleshooting Routes

  • Tested on multiple Windows machines
  • Tested Chrome, Edge, Firefox
  • Removed all custom layout/CSS
  • Verified container is full size (100% width/height)
  • Triggered manual resize events
  • Tested with minimal UI (no headers/side panels)
  • Tried to upgrade the SDK version

Issue persists in all scenarios.


How To Reproduce

  1. Join session (UI Toolkit 2.2.5, Windows)
  2. Have multiple participants, and switch to speaker view and Gallery view once or twice
  3. Observe Speaker View → overlap
  4. Switch to Gallery View → overlap persists

Expected Behavior

Proper responsive layout without overlapping tiles.


Actual Behavior

Tiles overlap in both views; layout does not reflow.


Given this reproduces in a clean setup, this looks like an SDK issue rather than integration-specific.

Hi @Puneet thanks for reporting this! Can you please provide a screenshot of the layout you see when replicating the issue? I can bring this to our web team to assist.

I am unable to attach to the ticket and getting an error that “An error occurred: Sorry, you can’t embed media items in a post.”

can you please share an alternate method to share the screenshots? I’ve tried replying to the email and get the same error.

Please let me know how to share the screenshots, We are stuck in this issue of VSDK and desperately need your support.

Hi @ticorrian.heard please help in this.

@Puneet Can you try updating your Uitoolkit to the latest version and see if the issue persists?

We have already tried that as I mentioned in the original ticket

@Puneet Are you able to reproduce this issue here: Zoom Video SDK UI toolkit

unable to join the same session in this, it always creates a new session for anyone who is trying to join.

@Puneet I see. This was probably a change introduced recently. Are you able to try the sample app in that case? GitHub - zoom/videosdk-ui-toolkit-react-sample: Use the Zoom Video SDK UI Toolkit in React · GitHub

Hi @Puneet I also confirmed with engineering that you have to use the invite link in the ui of the app to join multiple users: