Looks like the developers were wrong when they referred the application crash to special features of openSUSE Tumbleweed, because the problem now also occurs with new Ubuntu version 20.10. Tried it out (on live usb): Ubuntu 20.10 64-bit GNOME 3.38.1 # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007fbb585ee189, pid=6558, tid=7092 # # JRE version: OpenJDK Runtime Environment Zulu14.29+23-CA (14.0.2+12) (build 14.0.2+12) # Java VM: OpenJDK 64-Bit Server VM Zulu14.29+23-CA (14.0.2+12, mixed mode, tiered, compressed oops, g1 gc, linux-amd64) # Problematic frame: # C [jffi4261450707072693211.so+0x7189] Systemlog Oct 23 11:05:58 ubuntu AppRun[7283]: Failed to load module "canberra-gtk-module" Oct 23 11:05:58 ubuntu org.freedesktop.FileManager1[7283]: 11:05:58.958 [main] INFO org.cryptomator.launcher.Cryptomator - Starting Cryptomator 1.5.8 on Linux 5.8.0-25-generic (amd64) Oct 23 11:05:59 ubuntu org.freedesktop.FileManager1[7283]: 11:05:59.153 [JavaFX Application Thread] INFO o.c.ui.launcher.FxApplicationStarter - JavaFX Runtime started. Oct 23 11:05:59 ubuntu org.freedesktop.FileManager1[7283]: 11:05:59.451 [JavaFX Application Thread] ERROR o.f.secret.handlers.MessageHandler - org.freedesktop.dbus.exceptions.DBusException: org.freedesktop.DBus.Error.UnknownMethod: No such interface ���org.freedesktop.DBus.Properties��� on object at path /org/freedesktop/secrets/collection/login Oct 23 11:06:00 ubuntu gnome-shell[5623]: Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3e00004 Oct 23 11:06:00 ubuntu gnome-shell[5623]: Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3e00004 Oct 23 11:06:14 ubuntu systemd[1]: systemd-timedated.service: Succeeded. Oct 23 11:06:24 ubuntu org.freedesktop.FileManager1[7283]: 11:06:24.911 [App Background Thread 003] INFO org.cryptomator.common.vaults.Vault - Storing file name length limit of 220 Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # A fatal error has been detected by the Java Runtime Environment: Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # SIGSEGV (0xb) at pc=0x00007f65fc3ed189, pid=7283, tid=7423 Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # JRE version: OpenJDK Runtime Environment Zulu14.29+23-CA (14.0.2+12) (build 14.0.2+12) Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Java VM: OpenJDK 64-Bit Server VM Zulu14.29+23-CA (14.0.2+12, mixed mode, tiered, compressed oops, g1 gc, linux-amd64) Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Problematic frame: Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # C [jffi17449612571713990617.so+0x7189] Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P %E" (or dumping to /home/ubuntu/Downloads/core.7283) Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # An error report file with more information is saved as: Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # /home/ubuntu/Downloads/hs_err_pid7283.log Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # If you would like to submit a bug report, please visit: Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # http://www.azulsystems.com/support/ Oct 23 11:06:25 ubuntu org.freedesktop.FileManager1[7283]: # Oct 23 11:06:25 ubuntu systemd[2502]: home-ubuntu-.local-share-Cryptomator-mnt-F9EjrZHwK9kF_1.mount: Succeeded. Oct 23 11:06:25 ubuntu systemd[1]: home-ubuntu-.local-share-Cryptomator-mnt-F9EjrZHwK9kF_1.mount: Succeeded. Oct 23 11:06:25 ubuntu systemd[2502]: tmp-.mount_cryptoOnSZIV.mount: Succeeded. Oct 23 11:06:25 ubuntu systemd[1]: tmp-.mount_cryptoOnSZIV.mount: Succeeded. Looks like the same error as before under Tumbleweed, now also under Ubuntu