I'm getting a "Multiple output sheet entrys error" when working on the following multichannel design in the "ESD.SchDoc" and "SALIDAS.SchDoc" module.
I have followed the guidelines on Multi-Sheet and Multi-Channel Design | Online Documentation for Altium Products
Input ports seem to work ok, but output ports raise the error.
At the bottom there is also a multichannel configuration without the REPEAT keyword on "INTENSIDAD.SchDoc" sheet that seems to work,

