In my game I have snowballs that can be picked up and thrown, and will break if a hit event is above a certain force. If you are gripping the snowball actor, and hit it against something that breaks it (thereby destroying the actor) then the hand grip animation is stuck in the “grip” position even when you release the trigger. You need to grab something else before it’ll start working again. As you can imagine, this is a weird/frustrating thing to experience in VR.
Here’s a video demonstrating the issue and how to fix it:
I got it working properly by simply making one connection in BP_MotionController to clear the attached actor reference if the actor is no longer valid when you release the trigger:
Could you guys at EPIC please include this bugfix in the next update?