What output do you get when running /usr/libexec/syncevo-dbus-server in a shell and then start sync-ui?
I expect the daemon to crash. Can you run it under a debugger and capture a stack backtrace?
gdb /usr/libexec/syncevo-dbus-server $ run ... $ thread apply all bt
What output do you get when running /usr/libexec/ syncevo- dbus-server in a shell and then start sync-ui?
I expect the daemon to crash. Can you run it under a debugger and capture a stack backtrace?
gdb /usr/libexec/ syncevo- dbus-server
$ run
...
$ thread apply all bt