Can confirm. My group and I have lost 3 cars in the last 3 weeks to stupid low speed collisions with road signs. All under 20kph, all ended with ruined tires, spark, rad and battery from pristine. I don't see how the rad and spark plug can get ruined when the fenders and bumper only dropped to worn/damaged. We're giving up on cars for now, which is frustrating because that's a large part of building a base and group play.

I also had a fence that was partially built (had the logs dug in for a while but never built any wall parts) and now I can't finish building it. Same problem as the other test walls, can build the bottom sections but not the top sections.

I think I'm getting this same problem. I hopped on yesterday to check my base and someone had tried breaking in. No problem. The problem is I can't fix some of the walls they broke. The prompt to repair won't appear on some walls.
I tried building some new walls inside as a test (Red roof barn) and I could place the fence kit fine but only build the lower half of the wall, even though there was no obvious clipping happening or anything else that would prevent me from building the top frame or wall.