Hello Isaiah
Thank you for such a valuable comment.
I bumped with the same story:
I tried to hide some views from "itil" users (with view_changer role onboard)
and only "Clear Cache" helped me to solve it.
Hi,
"If no domain is set as Default, Tasks and Users with no domain are placed in the global domain."
Thus simply open TOP/MSP/Default domain and uncheck the "Default" field on the form.
That's all.
With best regards, Dzmitry