Seemingly random detail drop at gas station

Hello.

I have a strange issue with the details of the gas station I decided to settle in. For no apparent reason, the detail level on its outside parts (i.e. blocks that are technically part of the station, but not inside the building) drops, and nonexistent blocks are drawn near the doorways, specifically on the same "level" as the walls or one block to the outside (i.e. outside but still touching the walls).

Another thing is all the ground clutter like piles of bricks, trash, and trash cans have a small cube in the middle, as if it were some entity that wasn't supposed to be displayed, like, say, these in WCIII world editor, except in 7DTD those are textured. My guess is those are the hitboxes.

I don't even mind the detail drop as much as those false blocks, because they obstruct vision and I have to exit the building blindly.

Imgur album

The wilderness and other structures I've come across don't seem to have this issue, only this gas station.

Is this a known issue and is there anything I can do to fix this?