IHawkI

I had the same issue for a while when me and a friend played. The issue for us was that Player Visibility was OFF on his end. Basically when both of you are playing Both of you Go to MAP on SCA.B OS(Tab or menu) Both of you Select YOU on the list Check the little ICON next to your acct name. If it looks like the one on the SCREENSHOT then player visibility is active, meaning they see you. If it looks like its closed, then they cant see you. Your name will be hidden while in the map and there will be no player icon above their heads. Each person control their visibility to the party. Hope this helps. Screenshot provided

Prior the patch, I had no collisions or "Location Obstructed" issues building above a certain elevation against the tree. Now I get them constantly in both my single player and multiplayer saves. Its not all build able items. I can place a flag at that elevation as well as some bug mounts. Also grass planks and stem scaffolding seems to be unaffected. Other objects are untested. Moving objects still shows location obstructed even if overlapping or not. Platform PC(Steam) Is this an isolated event? Screenshots provided for context.