Something definately happened. Last year I only witnessed this around the border of the cimmerian area and the savannah area. Now it is almost everywhere, where bigger (bigger than a rock you can harvest) rock formations are. IF I remember correctly, there was a cut in texture/texture streaming quality to gain performance, probably that’s the culprit? Because it is noticeable everywhere even in mods (Savage Wilds).
There are many many MANY places in the SE Jungle like this. The map clearly seems unfinished in that area especially.
Besides the SE Jungle, many of the higher peaks also suffer from this misaligned player-clip and/or vertex-normal smoothing errors. (on official servers - so no mods are responsible).