Can you provide a bit more background information? Are the resources stored on the same machine as the FME Server core or are they on a different server?

Certainly :-)

The installation has a corehost with server and 2 engines, and an enginehost with 4 engines.

All resources are on the corehost, and reachable from engine-host via UNC-path.

The corehost is installed pretty much as in the docs for distributed/custom installation, and the enginehost is installed pretty much as described in

https://docs.safe.com/fme/html/FME_Server_Documentation/Content/AdminGuide/Adding_FME_Engines_on_Separate_Machine.htm

And the system has been working for several months. I tried moving files out of the way (we store a number of files under Data and Temp directories). But this didnt help.

Hi @mineisdfe,

If you have already tested removing files manually from the eight directories in resources then I might focus on permissions and see if the service account running fme server has full read/write permissions to that directory. This is a good overview of permissions.

https://docs.safe.com/fme/html/FME_Server_Documentation/Content/ReferenceManual/Directory-Account-Permissions.htm?Highlight=directory%20and%20account

and this is our resource troubleshooting article which may also be useful.

https://knowledge.safe.com/articles/55585/fme-server-troubleshooting-resources.html

Thanks

Richard