Linked files don't update correctly

I am currently working on a house complex. There are 3 types of houses, so i’ve modelled each one seperately and inserted them as reference blocks to the file (linked only). I made sure that every block reference is up to date, yet some materials (the grass and concrete textures in particular) don’t appear correctly in the combined file, and I cannot understand why. Any ideas?

are you having duplicates in block names?

no, every name is unique

Hello - by this,

don’t update correctly

do you mean that changes to the materials are not reflected in the overall scene, or that materials just look wrong when they are inserted? If you can post or send to (with a link back to this topic in your comments) we can probably figure out what is going on.