i would say that you are hooking, and unhooking caused from hitting the tire a little to hard.
That is exactly what I see too.
Initial tire downward pressure to violent causing tire to basketball upward and brek traction momentarily is what I am seeing here.
DRop ladder bars one full hole and at same time loosen extension dampening on rear shocks. Yu may even have to tighten them up agin by some. I always re-adjust shocks after moving bars so the change is not as
If 4 link do the same with shocks but move Instant Center Down or Down and Forward next holes. The car is hooking too hard.
Ed