Comment 21 for bug 1545707

# systemctl is-enabled tmp.mount ; echo $?
Failed to get unit file state for tmp.mount: No such file or directory
0

Ouch, so systemctl exiting successfully (with 0) for a nonexisting tmp.mount is indeed bad, and would cause this bug. dino99 correctly gets an "1" there, so dino99 and Sworddragon do *not* experience the same bug here. As Sworddragon reported this, let's concentrate on this issue now.

Sworddragon, can you please look for any tmp.mount units you may have around, with

  find /{etc,lib,run}/systemd -name tmp.mount | xargs ls -l

?