[BUG] Meeting SDK Web v5.1.2 — "Join Audio by Computer" Button Disabled (~15% of meetings)

Meeting SDK Web
1

Description
After upgrading from Meeting SDK Web v4.0.0 to v5.1.2, approximately 15% of our meetings fail to join audio. The bot enters the meeting successfully but the “Join Audio by Computer” button in the audio modal is disabled/greyed out. Reverting to v4.0.0 immediately resolves the issue.

Environment

Field Value
SDK Meeting SDK Web
Affected Version 5.1.2
Working Version 4.0.0
Impact ~15% of meetings

Steps to Reproduce

  1. Upgrade Meeting SDK Web from v4.0.0 to v5.1.2

  2. Have a bot join a Zoom meeting

  3. Observe the audio modal upon joining

Observed Behavior

  • The bot enters the meeting successfully, participants are visible and video is working

  • The “Join Audio by Computer” button in the audio modal is disabled/greyed out in ~15% of meetings

  • The issue is not reproducible on SDK v4.0.0

  • Downgrading back to v4.0.0 immediately resolves the issue

Expected Behavior

  • The “Join Audio by Computer” button should be enabled and functional, consistent with behavior in SDK v4.0.0

Screenshot 2026-03-02 at 2.58.18 AM
Screenshot 2026-03-02 at 2.58.18 AM1188×596 38 KB

2

On the SDK side, I’d verify version alignment before treating this as a 5.1.2 regression. The import the Meeting SDK for webflow requires the correct versioned assets, and Zoom has a prior staff-confirmed case where a disabled audio button came from mismatched setZoomJSLib assets.

You can check to make sure every JS, WASM, and lib/av path is pinned to 5.1.2 with no cached 4.x or older source.zoom.us assets. You can also check to see if you can reproduce the same meeting in the official Meeting SDK web sample. If it fails there on 5.1.2 but not 4.0.0, that is the strongest regression report you can hand Zoom.

One thing to note - the Meeting SDK for web docs explicitly says this SDK is reserved for human use cases and does not support bots or AI notetakers, and point these use cases to RTMS instead.

If you need help, check out Recall.ai. We’re a Zoom RTMS Preferred Partner.

3

Thanks for the suggestions. I double-checked the asset version alignment and confirmed that the JS, WASM, and lib paths are all pinned to 5.1.2, with no references to older assets.

I also verified this by running the same meeting locally and in staging using the 5.1.2 assets, and the issue did not reproduce there.

The behavior only appeared after deploying to production, where approximately 15% of meetings show the “Join Audio by Computer” button disabled, while the rest function normally.

Reverting back to v4.0.0 immediately resolves the issue, which is why we suspect a regression or edge case in 5.1.2 under certain conditions.