I'm experiencing the same issue using maas 2.5.1 installed from ppa:maas/stable: Installed: 2.5.1-7508-gb70537f3d-0ubuntu1~18.04.1
I'm experiencing the same issue using maas 2.5.1 installed from ppa:maas/stable: gb70537f3d- 0ubuntu1~ 18.04.1
Installed: 2.5.1-7508-