hello! i'm having a similar issue that @Anthony Browne was having. i've tried resetting my permissions, but it didn't help.
the specific issue i'm having looks like this:
then staying at the "getting status" stage forever.
after trying "dnd 30m" twice (but being unable to actually hit "enter"), here was the debugger output:
[14:30:21.039] Logging Started...
[14:30:23.972] Calm Notifications[Script Filter] Queuing argument ''
[14:30:27.309] Calm Notifications[Script Filter] Queuing argument '3'
[14:30:27.364] Calm Notifications[Script Filter] Queuing argument '30'
[14:30:27.629] Calm Notifications[Script Filter] Queuing argument '30m'
[14:30:42.847] Calm Notifications[Script Filter] Queuing argument ''
[14:30:43.735] Calm Notifications[Script Filter] Queuing argument '3'
[14:30:43.826] Calm Notifications[Script Filter] Queuing argument '30'
[14:30:44.142] Calm Notifications[Script Filter] Queuing argument '30m'
[14:31:40.805] Logging Stopped.