I tried opening the default-value dropdowns for both Priority and Type on a local development instance, but could not reproduce the freeze.

Could you share your browser name and version, operating system, and the exact steps that trigger it? Does it freeze immediately when opening the dropdown, or when hovering over, searching for, or selecting an option? Your screenshot shows Type choices (New Feature, Bug, etc.); does this affect Type, Priority, or both?

Please also let us know whether it still happens in a private/incognito window with extensions disabled.

You were right, and I did some further testing.

In Google Chrome 152.0.7977.84, I randomly disabled one browser extension, and the browser temporarily returned to normal. However, after using it for a while, the freezing issue happened again.

I also tested in Chrome Incognito mode. The result was similar: sometimes it worked normally, but sometimes the browser still froze.

After that, I tried Microsoft Edge 153.0.4234.32, and the behavior was basically the same.

The issue usually happens after I open the dropdown and select an option. After selecting it, the browser may freeze completely and become unresponsive.

I’ve attached a screen recording showing the behavior in both Chrome and Edge, in normal mode and Incognito/InPrivate mode.

My system information is:

• Windows 10 Pro
• Version: 22H2
• OS Build: 19045.6466
• Installed on: January 29, 2023

Thank you very much for your help. I hope this information and the screen recording can help with further investigation. Video_2026-09-12_095816.mp4

Still cannot reproduce with exactly same version of OS and edge. Nevertheless, I upgraded the involved select2 js to latest version in build OD-8438 (16.6.3). Please give it a try to see if it solves the issue.