I have the same problem, i tried with a fresh saved game files and still have the problem, the designated point on the ground is very shaky when i look at it, pretty sure it was not that shaky before.
I play on VR and on the A-10 the designated point on the ground is very stable.
With the latest beta using the Trustmaster Warthog throttle and stick, 2 TM Cougar MFD