Quote Originally Posted by overheadhunter@github
We did some experiments and were able to show that the crash depends on the load order of certain libraries:

  • If we show the GUI (load JavaFX) before loading libfuse, mounting a drive will lead to a crash.
  • If we load libfuse before initializing JavaFX, mounting will succeed.

So far we can not tell, why. Apparently the lib load order decides whether some later method invocation is compatible or not.

A ugly workaround would be to eagerly load fuse at the very start of the program. But there must be some better way to achieve this.
For the time being they released a workaround version @github
>> cryptomator-1.5.8-libffi8-x86_64.AppImage

Maybe this helps someone with the same issue.