[Bug]: Dialog sometimes remains hidden in jest+RTL tests

[alice-ep]

Component

Dialog

Package version

9.59.0

React version

17.0.2 (though reproduced with 18+ as well)

Environment

System:
    OS: Windows 11 10.0.26100
    CPU: (12) x64 Intel(R) Xeon(R) W-11855M CPU @ 3.20GHz
    Memory: 32.08 GB / 63.71 GB
  Browsers:
    Edge: Chromium (130.0.2849.46)
    Internet Explorer: 11.0.26100.1882

Current Behavior

Tests of components that use a dialog intermittently fail in our CI pipelines and locally. Local runs are easy to reproduce by running the test multiple times. It seems like the dialog sometimes stays hidden after being triggered and thus RTL can't find it with get/findByRole

This started happening after we upgraded to the latest react-components packages, as well as in a separate branch that tried to install the calendar compat package which caused an upgrade to fluent's latest tabster package (9.24) - which I suspect might be guilty of the regression

Expected Behavior

Not fail :)

Reproduction

https://codesandbox.io/p/devbox/romantic-wiles-forked-f4h4zl

Steps to reproduce

Run the test (note that it repeats 10 times) - at least one of the 10 runs will fail with it being unable to find either the dialog or the input inside it

Are you reporting an Accessibility issue?

None

Suggested severity

High - No workaround

Products/sites affected

Internal Microsoft product

Are you willing to submit a PR to fix?

no

Validations

• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• The provided reproduction is a minimal reproducible example of the bug.

[alice-ep]

The workaround technically is to stay with a lower version of Fluent, but obviously that's not a long term solution :) We'll rollback the update for now so our CI pipelines aren't constantly.

[Wezea]

I can confirm this for version 9.60.0 and a vitest setup. Tests including the Dialog failed randomly. Have to pin version 9.58.2 which works for me.

[alice-ep]

Hiya, any updates about this?