[NTG-context] modules not found

Here is something I do not understand about \usemodule. My modules are in two places because I wanted development and production separated: (1) Volume/TeX/texmf/modules/ (2) Volume/TeX/texmf/modules-new/ Unexpected and suddenly loading files from the first directory does not occur any longer: modules > 'hvdm-tak' is not found But modules from modules-new load without a hitch: modules > 'hvdm-load' is loaded I have discard the caches and rebuilt them to no avail. Then trying mtxrun --locate filename does not show any location not even from the files that are loaded, just an empty line. What happens inside \usemodule to cause this? I confess being baffled. And how to convince ConTeXt to find all my modules? dr. Hans van der Meer