When using the pop-up calendar component in the multi-monitor setup described below, the calendar behaves inconsistently depending on which monitor the client is running on.
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On Monitor 1, the pop-up calendar displays correctly.
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On Monitor 2, the pop-up calendar opens at the top of Monitor 1 instead of Monitor 2.
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On Monitor 3, the pop-up appears significantly offset, displaying much lower than the associated drop-down button.
The issue went away after reconfiguring the monitor layout so that all displays were arranged in a single horizontal row.
All displays are the same resolution and scaling. The components are simply placed in the root container of a main window.
Is there any solution for this issue so the pop-up calendar behaves as expected regardless of the overall Windows multi-monitor arrangement?