Changes

The environment variable TEXINPUTS has to be empty or unset. If not, youcan get errors about "file.tex /module/whatever not found". TEXINPUTS can *always* be a problem and really should not be used at all any more. It is a historical environment variable from the nineties, and it overrules just about every path in a modern texmf tree. If you need something special, use TEXMFLOCAL or TEXMFPROJECT instead.