Lynn, you saved my day 😛

OK, now I run the "update" separately ...

EXEC msdb.sys.sp_dbmmonitorupdate @database_name = 'Navision-SQL'

... and then I execute the "results" without the update:

EXEC msdb..sp_dbmmonitorresults

@database_name = 'Navision-SQL'

,@mode = 0

,@update_table = 0

Now everything could be inserted into that table for further processing :w00t:

Thank you very much for your help!