unknown location error

[Rchv]

I often get the error below when starting a render. I am not sure what causes it, could it be that render slaves still have files in use from the shared directory, from the previous render?

[VOYT]

I think the slaves are in process of terminating render - and this causes the problem you described.
In newer builds of engine this seems to be solved somehow. Now stopping the DR job works swiftly..