Safari 16.6 on macOS 13.5.2 Overlay-Bug

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/safari-166-on-macos-1352-overlay-bug/
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When I want to edit the prefered charging operators, I get a semi transparent white overlay above the whole webapp. So I can't click on the charging operators inside the modal window that appears. (When I do delete this DIV inside the webdeveloper window, I can use the modal window again)