I wasn't really able to reproduce this issue, so my attempt at fixing it was a shot in the dark. It's certainly something very strange if you have objects not sticking to their normal grid positions.
This is inside the zone of persistence around Orson's cabin, not wilderness, so I can't easily retroactively fix it for old saves. The shape of it makes me think it's not related to what I've changed. Was this already present the first time you went to the cabin on this save? Does it occur on fresh 1.7.1 saves?
I'll give it a go in a fresh 1.71 save and update you on this, this bug did start in 1.7 and I didn't retry in 1.71 from fresh, all I truly recall is that a prior save in 1.7 didn't have that issue on day 1, but it seems that since day 7 it's always like this, and that's despite reloading a fresh chunk even in 1.71 (from the broken 1.7 save, right before entering the tile), I actually made the save right before the tile in question to generate it anew since I hadn't entered it until day 7 and the problem still persists, here's a few screenshots to demonstrate it;
The same part seems to load with that error every time, the rest of the map is loaded differently every time on entrance.
This is pure speculation on my part, but perhaps this issue only occurs after a few days (about a week) passes ingame, if you tested it day 1 it might not reproduce the issue.
But that's pure conjecture on my part, it's more likely it's an issue with my save specifically, I'll try a fresh one with 1.71 and keep you updated if it happens again. It's either A. The save was broken from the get go, but somehow I didn't notice early with that Day 1 visit I made but then reloaded, before returning here during day 7, in which case I'm sad to say I have no idea what caused this. Or B. A problem that only occurs after a number of day passes, which might be the reason you couldn't reproduce it.
Update;
I reloaded the same save, same character, but back from day 3 instead, and I can confirm; the chunk issue is absent.
So either 1.71 miraculously fixed that old day 3 save, or something must've happened between day 3 and day 7 on that save that caused it to happen, here's the screenshot of that same spot at day 3 instead, again, from the exact same save but earlier;
