UUM-37728
Fixed in 2021.3.30f1Mentioned in 1 Unity 2021 LTS release note.
First fixed in 2021.3.30f1 (Aug 29, 2023).
| Version | Section | Risk | Impact | Note |
|---|---|---|---|---|
| 2021.3.30f1 | Fixes UI Toolkit | Fix | Fixed a deadlock when quitting WebGL Player when the code utilized System.ThreadPool. |