(2017-10-12, 17:18)Roland Melkert Wrote: [...]
The reason this isn't working in your scenario is probably because you are using the unofficial library as a sub location of the official one, which is something I never really mend to happen
[...]
But... I'm using the following setup for years now (in LDCad):
LDraw (root folder)
-> Parts
-> -> p
-> -> parts
-> -> unofficial
-> -> -> p
-> -> -> parts