Application freeze on dialog close [Mac]

[Craig Raw]

I have multiple reports of application freeze (spinning beach ball) when a
Dialog opened with showAndWait() is closed. The application does not
recover and must be terminated with force quit. No error logging is
produced.

This only occurs on a Mac, and is rare, but can be consistently reproduced
on affected machines. It occurs on both Intel and M1 chipsets. Preferring a
software pipeline (prism.order=sw) does not affect it. I am currently
building with JavaFX 18 on JDK 18.

I cannot find any related JavaFX bug report. My own Github issue is here:
https://github.com/sparrowwallet/sparrow/issues/586

Any assistance with further diagnosing or solving this would be appreciated.

Craig
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