Hi, can you please check if your version of Windows and your drivers are up to date and try verifying your game files' integrity through Steam?
Thanks for your answer, but yes, both my Windows Updates and NVIDIA drivers are up to date. I use GeForce Experience to automatically update the graphic drivers, so no issue there.
What I have been noticing for the combat polygons is that they show up when I get close to the enemies, for example, they will be brownish when approaching looters, but grey/purple when approaching sea riders during the combat 3rd person camera.
I haven't identified a clear pattern for the map polygons, however, they tend to show up while zoom is 2 positions before the max zoom.
Also, letting you know that this is only happening since the 1.2.1 update.