Please help us help you and fill where relevant:
Your LimeSurvey version: [ 5.6.10+230313
Own server or LimeSurvey hosting: own server
Survey theme/template:
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When I hit the menu Group list the browser freez. Have to go one step back. Menu is not available.

I recommend to check via different browser and empty the cache of each browser first. If you still have issues,
I recommend to open a bugreport. You use a LimeSurvey version of today. We might see some more people have this issue

Reparted in mantgis .
Solution : reset menus and menus entries.

Still an issue in my opinion.

Sounds like my issue:
forums.limesurvey.org/index.php/forum/in...generaltabeditsurvey

I had debugging on to see the error, otherwise, my browser just froze with a partial blue line along the top of the LS page, and then the page goes gray, and nothing else happens....

There are 2 issues here.

1. When there are error : you don't see it
2. the update broke at certain step.