Quote - 1)   All "Map" strings are followed by "NO_MAP", and searching for "jpg" and "Textures" both returned nothing.

Then it is hard to see how your tester could be getting texture calls. The only thing I can think of is that the texture calls must be in the third-party INJ files that you mention. There could well be nesting here, with the INJ files calling other files that call yet other files that might contain texture calls.

Quote - 2)   The slave morphs are keyed to the internal names of their masters rather than the dial names.

That is not the most common way to do it, and not a good idea if we are talking about channels named PBMCC_## or PBMDC_##, but should not be causing any of the problems your tester is experiencing.

Quote - Also, I'm not sure why you're talking about PZ2s, because the only PZ2s are the INJ/REM poses for the third-party slave morphs.  The figure itself is in the form of a CR2 and PMD sharing the same directory.

I mentioned pz2s because I was not sure if you were using them or not, but wanted to keep all options covered.