Dear damian:

The sript you provided sounds like incomplete?

Would you please help to check it, thanks!

Thanks damain~:)

With your script I see the objects belong to their filegroups.

But,though there is NULL in the filegroup, I still cann't remove it, and also says:

Msg 5042, Level 16, State...

I also encountered this problem, and resolved as following:

USE [msdb]

declare @job_name varchar(100)

set @job_name = N'SystemDB-MaintenancePlan.Subplan_1'

delete sysmaintplan_log

FROM sysmaintplan_subplans AS subplans INNER JOIN

sysjobs_view AS syjobs ON subplans.job_id = syjobs.job_id INNER JOIN

sysmaintplan_log ON...