@amilcarlucas, the OP’s problem is with a pair of HerePro modules, but it seems to extend to my pair of Here3+ modules as well (used for testing here, as it’s what I have on hand, and the issue seems reproducible).
I previously raised this issue, but I think the problem is worse than just reverting back from moving baseline, as no one seems to be able to configure Here GPS modules for yaw.
I tagged Tridge, Randy, and ProfiCNC in a post above (and I think in another related thread from this summer), and I recently made a brief inquiry on the #hardware Discord channel. While I’m sure it isn’t personal…feeling a bit ignored here.