Sundance force crouch after landing

I had this issue with Dozer.  Obviously he has no wing suit, but it had to do with either getting into a friendly Jeep or Hovercraft that collided with me, or I got hit by an enemy Jeep or Hovercraft that 'pushed' me across the map as it was getting destroyed (i.e. no pilot).  Very odd.

Also, not sure if OP mentioned it, but you couldn't run or jump, obviously, while force crouched.