Ok, the module used layers and “use as prefix/suffix” was not checked, thus replacing the piecename.
However, for whatever reason the basicName was also not working properly… Not sure if for same reason or not…
FWIW - I don’t think “replacing” a pieces name with a layer name is good default behavior. I think it’s a great option, but shouldn’t be the default… (i.e., consider a change in the paradigm for V4).