Can people who are having issues running the latest version please post your OS specs here? I think this is a long standing bug with the JVM on some Linux machines requiring a call to XInitThreads in the XWindowing system that's not getting called. It is COMPLETELY out of my power to call this, as it needs to be called effectively before the first line of 'main' in the PZ program, aka before the actual java code ever starts, so it's up to the JVM to do this not I.
You could try installing latest graphic drivers / version of java, if you've not already, perhaps the problem I read so many places was later solved in a JVM update? but sadly there's likely nothing I can do but remove the significant performance boosting render system that was added to 16 (which after months of moaning about FPS, not one person has mentioned btw )
Question is whether I need to remove it across entire Linux or if it needs to be a menu option. i.e. are there Linux people who don't get this error?
If I can figure out exactly what versions its affecting maybe I can better check for it?