I am not able to unassign machine from a folder,why?

Hello experts !
I am not able to unassign machine from a folder , what may be the problem ? can anyone help me out ?

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@RobotUi

Check the triggers if there are any

cheers

Yes, i do have Triggers but that is handled by Dell
Robot

Hi, disable all triggers then try to unassign machine from a folder.

Already did, but not worked.

Okay you only disable all triggers, please remove all triggers and make sure trigger field is empty and then unassign machine

Not worked. . . . . . . … . . . . .