Hi Victor,
We have two relevant changes here that you may want to grab, CL#39052857 and CL#42587574. The second change resets ViewSource.RegisteredCount to 0 as you mentioned, though it sounds like you may have needed some additional fixes here. I’ll check if I can reproduce this in UE5 Main, if so then we can investigate making a similar change on our side.
Best,
Cody