I have a misalignment problem between #magic and klayout that causes DRC issues in the files generated by openlane. I reported it on #magic today and could need help to find a solution for it. I have updated my repo at https://github.com/thesourcerer8/caravel_stdcelllib_stdcells_project/ with updated files (which solved several other problems), so I think it should be possible to reproduce it with that. (Unless it is an issue with my environment)