Kwikflight team,
I second this request, cannot taxi on the ground. I suspect it could be one of two things: one could be too high of the main landing gear, which causes the rotor disc to be tilted Aft more than it should be, which allows for enough thrust on the ground to move backwards, but not forwards. The other could be the router head itself does not have the proper static forward angle. Or it could be a combination of both. Please lower the front landing gear, and see if this fixes the issue, because it does sit too high compared to the real aircraft. Thank you for your consideration.
-Preston