Navmesh working only for one model

Hi! I have an object running on a navmesh, and it works well. The only problem is that when I try to do a navmesh for another object, it doesn’t work. I can duplicate the one that works and it will work elsewhere. I am setting up the other navmeshes just the same way and it doesn’t seem to work.

Any suggestions?

make sure the object is in the same layer as to the one that works.