Upgraded Collaborator server to 11.3 (build 11301).
With both client versions 11301 and 11000, get the following error trying to create a new review:
!ENTRY com.smartbear.collaborator.ui 4 0 2018-07-11 16:24:34.643
!MESSAGE Could not finish Review Job
JSON API Error: Permission denied (Code: IOError )
One additional detail: When I log into Collaborator (in the browser), a new review was created but none of the files were added.
So, even though the error indicates "Permission denied", the client authenticated enough to create the review.
I've attached the full log (which was actually split into 5 separate files).
In each of those files, I've sanitized file names, file content, etc., which you'll see as a note of the form "<BK Sanitized ...>".