I had a search but the only solution to this was to make the cache files visible on the network - which they are, I was doing the simulation straight to it.
Any other ideas?
if you have play speed different than 1 it also can produce such a problem with the official build
Sending a scene to the networkrendering will copy the maxfile to some place else. So if you have your output set to $(simoutput), which will point to a place relative to your maxfile, there is no chance for your slaves or even your own workstation of finding your .aur-sequence. Replace either your output or input to a path like \\yourfileserver\dir\whatever or z:\networkdrive\
aahhh, thank you! I didn’t realize it had to be a full path.