Blinking windows

mjthoraval

When opening a separate window, I see a white blinking before the opening of that window.

For example for the "About Zotero" window, I get:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/h3xtdhrfhya28rreipz2.png
Before:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/ls1vowy89xobh3xb54s4.png

Another example for the "Report Errors..." window, I get in succession:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/j461tucz1d5ay6h6y9ig.png
https://s3.amazonaws.com/zotero.org/images/forums/u265723/w4n716fht1ota5nqon14.png
https://s3.amazonaws.com/zotero.org/images/forums/u265723/n9nbsagtqu152ua1hrfi.png
https://s3.amazonaws.com/zotero.org/images/forums/u265723/yykwmfet9ikrlh53icxy.png

Zotero 8.0.2-beta.1+62894d56e (64-bit)
Tested in Troubleshooting Mode, but same problem in normal mode without plugins.
Windows 11