Very interesting, nice work.
I suspect the problem you are running into for mods like my Blaster Visual Effects is due to the textures not being square, and that may be the case for other mods on the list. I don't know why that would be the case, though—whether it is an issue with Switch or something went wrong when converting to TPC.
I was planning to update this mod sometime soon anyway so maybe we can resolve the issue with the new version.