I had a similar issue with Genji as when he moved right where I wanted to put the lighthouse and a bench. Fortunately, I managed to work around it. Francine thankfully moved neatly right next to him and Lily moved in such a nice spot after those two and their paths connect flawlessly. These guys moved in before I knew about the plot reset trick so it could've been way worse.
Ofc I misjudged the day that Zucker was supposed to move into the campsite though and he moved right where I was going to put a path to connect the top and bottom portions of my map. I'm just going to have to deal with it lol.
Julian moved in a really strange spot. I had to not only rearrange my paths, but tear town my bench set up that I had there. I was counting on him moving into Poppy's old spot but NOPE, guess not. I ended up making it work, but even still. Kind of a hassle.
I know how you feel </3
Bones plopped right into the small alleyway between the river and the cliff, destroying my forest, paths and flowers.
Good luck!
I've just had Blanche do the same thing, she just wrecked the forest behind my house.
I certainly understand your frustration. Ch?vre plopped her house in my Bamboo garden. Thing is, I was doing the reset trick. I made the mistake of using the TT'ing to 5:58 method, which I found out is quite flawed. :x