Weird. It’s supposed to look on complete match (including directories) and partial match (just /texturename).
Can you turn on verbose debug in ConfigUEr and send the log?
At the moment… yes, basically.
I’m thinking of adding an option for automatically finding a normal chain parameter and populating it, but I’m still looking at how normal textures are named. Would probably need an editable list of things at the end of actual normal texture file names (_n, _normal, _s, what have you, since nobody seems to agree on what to name them) so I can find them.