Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
I am trying to cut (bisect) an imported mesh, but I think I am doing something wrong or the mesh is just broken.
What do I need to do to fix this?
You have split faces, select all in Edit mode and merge by distance, with enough Merge Distance in the Operator box, then use the bisect tool, it will work fine.