OK, our version of the same problem:
Server and clients are 10.4.8, clients running 12.5.
Retrospect is in the picture, but only backs up at night, whereas we suspect this is happening just as one closes out of a file, maybe only on quiting VW.
I reassign permissions on the server once a month or so, to correct user created folder privileges, but never permissions/disk check. I'll give that a try. Need to bump everyone, etc.
One of our projects with a dead file has a relatively short file path:
sparch docs(thats the server)/projects/0601 philastan/cad/Base plan.mcd
on the other, its:
sparch docs/projects/0504 fishman/0504 cad/VW/current/house 02.mcd
I can tighten up that second path, although there a million workgroup references that will need relinking. Sigh.
Any though as to whether 12.5.1 fixes any of this? With Microstation there was a way to define a default path start point, in my case above I would have it start at /projects which would save a step or two... Does VW have anything like this?