Altium Hierarchical design error

I have a Hierarchical design in Altium and after compiling I am getting and error about Duplicate NET name wire.... I searched on Altium articles and here on electronics.stackexchange but I can't understand why I am getting the error. Here is a picture of it:

And here is my project settings:

I know I have 2 ports with the same name RX communication that is the port Altium is complaining about but I have other ports with also the same name:

And I am only getting a Warning (and I think I shouldn't be getting that warning). Can't I have ports with the same name in the hierarchy?

Answer

As @dextorb mentioned in order for this to work both extremes must have the same name.