I just found this entry inside the default.xml file located inside my Prepar3D/Autogen folder:You might want to check in which region of the default.xml file these library classes are defined. It might be they are not defined for the region that Portugal falls within.
Interesting there I see the GUID for Orbx_eu_castle_square is actually slightly different to the GUID which is given for Orbx_Eu_castle_square in Scenproc. Maybe this could be the reason? I'm not sure why they have a different GUID