CheckDatabaseRedundancy runs forever ...?

Hello,

we run the standard job "Database one copy alert" once a hour, since 20 days the job is running without finishing.

We have no logs in the eventlog 

if i run the Skript with the -v option, i can see no errors at all.

.\CheckDatabaseRedundancy.ps1 -MonitoringContext -ShowDetailedErrors -ErrorAction:Continue -v

it stops at "sleeping for 60 seconds..."

ErrorMessage: ,
SuspendComment:
VERBOSE: [11:24:41.404 UTC] Is-DagServerOnline: Entering: `$serverName=XXXXXXXXXX
VERBOSE: [11:24:41.404 UTC] Is-DagServerOnline: Leaving (returning 'True')
VERBOSE: [11:24:41.451 UTC] Check-DatabaseRedundancy: 'DB005': CurrentRedundancyCount=3, LastRedundancyCount=3
VERBOSE: [11:24:41.451 UTC] PossiblyReport-RedGreenStatus: 'DB005': time in green = 1341 secs.
VERBOSE: [11:24:41.451 UTC] Report-GreenStatus: Reporting a Green event for database copy 'DB005'
VERBOSE: [11:24:41.451 UTC] Iteration 2 of the monitoring check completed in 1281231.6567 ms
VERBOSE: [11:24:41.466 UTC] Iteration 2 of the monitoring check completed successfully.
VERBOSE: [11:24:41.466 UTC] Sleeping for 60 seconds...

running only .\CheckDatabaseRedundancy.ps1 works without problems and all databases are in green state.

Can anybody help?