I've got nearly 1,500 hours into this game, took an extended break after Automations came out, and just started a new game with the Apex Survival DLC installed.

When I build, even if it's just steel blocks, very often the block will not allow me to place it, sometimes changing the rotation of the cube steel block will let me place it, usually it won't. I can place another block there, such as a junction, remove the block, then place the steel block I couldn't place before. My algae farms were producing their thing for my food processor, but then I built a connector attached to one of the junctions, and now my algae farms aren't connecting to the rest of my grid. Power isn't being properly distributed either. My grid is all one unit, but the ridges on the armor look like random blocks are part of a separate grid. Never used to have this problem.