Failed to reap - because of directory not empty

We have a lot of theese errors in splunked.log, I have searched a lot to find an solution but to no success. *ERROR DispatchReaper - Failed to reap /data/splunk/var/run/splunk/dispatch/scheduler__admin_c3BsdW5rX2FwcF93aW5kb3dzX2luZnJhc3RydWN0dXJl__RMD5ce1429bf7fcd63ea_at_1529591400_160 because of Directory not empty* Im not sure what details is needed for helping me. Its a singleserver setup and Splunk is running on RHEL. Splunk is running as the user splunk (not root), and i have checked permissions on the folders mentioned in the log. I would appreciate any pointers you can help with, thanks!