Texturing an OBJ

I hope everyone is having a good day. After I import an OBJ, sometimes when it imports, insted of one segment it will come in as mutiple layered segments, in a folder. When I apply a texture and set the repeat at 5. One of the segments will look like a 1 repeat another is a 5 repeat and some look to be 10-20. If I change one segment all the others change as well. If set it at 10, the previous one that looked like a 10 before is now a 20 and the single is now a 5. Ungroup them, they are still linked. How do you break that link.

Thanks!