Not sure if this would affect it, but could it be that another component on DefaultPawn has mass? if that’s the case, then they might be stacking and it’s showing more mass than it should.
Side note, kinda unrelated but it might help: I was recently rebuilding my BuildingEscape level, and i had a weird OpenDoor glitch, where the door kept spinning past the TargetYaw, then spinning the long way around back to the TargetYaw, before skipping it again. I fixed it reducing the TargetYaw, so if this is a similar situation, then you may be able to fix your problem by changing DefaultPawn’s mass to something else…
Could there also be another object in the TriggerVolume at the same time by chance?