With macOS 10.13.4 and FMP 16v5 when I click on a date picker the calendar shows up behind the window. It doesn't do this on 10.12.6.
Thank you for you post.
Using FileMaker Pro Advanced 16.0.5 on an iMac running macOS High Sierra 10.13.4, I am unable to replicate the issue. The drop-down calendar always appears on top of the solution.
Do you have any plug-ins enabled?
Does this issue only occur with a specific database file or with all database files?
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