Sounds like the auto drop is happening from going out of range from the grip point.
I did recently change some logic around the drop distance where if the grip type is setting the pivot point then it will distance drop if the pivot point is too far away. That being said you generally shouldn’t be gripping at the pivot point on a door but instead at the hand location. It sounds like your origin is your root for that grip and it really shouldn’t be, you should be using GripAtController if its physical, not GripAtCOM, otherwise the door behavior will be off.
Some of the new logic may be bugged as well, i’ll do some more tests.
Edit lol yeah, found a bug in an if statement that i was using, thanks for bringing it to my attention