Hello, I possibly have some new information in regards to: https://bugs.openjdk.org/browse/JDK-8268657
It seems the bug is predominantly active on Linux Wayland systems and definitely not fixed and reproducible: https://github.com/mkpaz/atlantafx/issues/65#issuecomment-1644214727 The bug doesn't always happen but given enough tries, you will run into it at some point. The best way to effectively test for it is to run the Opal application in debug mode, and watch the logs as you switch themes. https://github.com/CodeDead/opal Hopefully this helps to locate the issue. Kind regards -- CodeDead Administrator https://codedead.com/