NC Talk group chat permissions unreachable

Using NC 28.0.2

When trying to change permission settings in Group chats to advanced permissions, the popo up screen shows up behind the first pop -up screen.
Therefore no advanced permissions can be set.

Anyone experienced the same issue?

What talk version are you using?

I have Talk 18.0.3 installed
To mention, it seems not related to the web browser. I experience the same issue in Chrome and FireFox (latest editions)

I have created a issue in Github to track the issue.