Julia adding an older version of my updated Gurobi Solber

(@v1.6) pkg> st
Status C:\Users\Nosdi\AppData\Local\NEMO\depot\environments\v1.6\Project.toml

I still think you’re running NEMO’s version of Julia, which must have some additional things that is preventing Gurobi from updating to the latest version.

I think the way to go is to uninstall everything completely and re-install them

Yes, I think this is the way to go. Install Julia from Download Julia.