After updating to 8.1 I loaded my save file. When I spawned I noticed that none of the trail marker icons placed throughout the world were showing. I went to the trail marker outside my base and it was physically there. I pressed X (on Series X) to look at the trail markers icon options and saw that the icon and color initially chosen for that base were selected. Without touching anything, I pressed B to leave the menu. That specific trail marker icon was now properly showing. I ran around to our other bases and a few other locations and was able to get their icons to show by using the same method.
I just loaded back in (after saving and quitting) and none of the trail marker icons are showing again.
Honestly this is a very minor issue, but I wanted to bring it to your attention. Thanks for fixing the ‘buildings treated as one single object’ issue so quickly, you guys are awesome. Keep up the amazing work! I freaking love this game, can’t wait to see what else is in store!