Cant change/list branch(es) from master

I converted a cvs repository to git and imported it into gitlab. When I go to the projects and try to change the branch from master to any other, I do not get the list of branches. When I click the dropdown to select a branch, I see the circular progress icon and nothing is listed. This goes on and never lists the branches.
Have tried logging out and in several times. Also tried cleaning the cache with “gitlab-rake cache:clear” command.

Your help is greatly appreciated.

Gitlab version 9.0.0 has this problem.
Another instance of version 8.15 does not have this issue.

Converted again and still cant the branches to be listed in the drop down.
Upgarded to 9.0.1 and still cant see the branches.
imported this repo into 8.15.1and I can see the branches in the drop down box.

Upgraded to 9.0.2 and the problem still persists.

Seems like 9.0.x is buggy.

Devs please fix this bug ASAP.

Thanks
Sada