jetbrains.vcs.server.api.VcsServiceException: Failed to construct commits graph

Hi,

I'm testing out the docker version of the 2020.1.1782 build on on-prem k8s cluster and having problems with an initial setup of a project imported from an on-prem gitlab server.

I am able to add the project without any errors, the VCS connection test goes OK but afterwards on the list of all projects I'm seeing 

Last VCS check: – [...]

and the error list:

13:37:12: Check for VCS changes completed with errors. jetbrains.vcs.server.api.VcsServiceException: 
Failed to construct commits graph for PROJECT_NAME{mappings: 1, mounts: 0}. 
Failed to construct graph for PROJECT_NAME:. 
Failed to collect commits graph for PROJECT_NAME:. jetbrains.buildServer.vcs.VcsException: https://gitlab.ON_PREM/web/PROJECT_NAME: 404 Not Found


13:37:12: Project PROJECT_NAME init failed due to unrecoverable VCS problem: 
Failed to import commits graph: Check for VCS changes completed with errors. jetbrains.vcs.server.api.VcsServiceException: 
Failed to construct commits graph for PROJECT_NAME{mappings: 1, mounts: 0}. 
Failed to construct graph for PROJECT_NAME:. Failed to collect commits graph for PROJECT_NAME:. jetbrains.buildServer.vcs.VcsException: https://gitlab.ON_PREM/web/PROJECT_NAME: 404 Not Found