Not that I know of. This is a JavaFX issue.
Make sure to use OpenJDK 19.
Thanks Erel, now I have updated the JDK and my first attempt to create the issue seems to confirm that the problem is solved.
However, another - not very significant - issue was introduced with the update. In the log within B4J, the special character "å" is now showing as "�". Any way to fix that?
So I should add that I also downloaded javafx 22 and put that in the folder. After a while, I did not only get the above error but also a problem where in b4j´s editor itself I would see a bunch of icons on top of my code.
I then went back to use the older version of javafx I used before (not sure which one that is, but I keep on using OpenJDK 19 for now) and now the problem is gone, but instead I´ll get a black screen for the UI if I log out and in of the remote computer.
So ... which javafx version should I combine OpenJDK 19 with?