Solved
Wrong links to PullRequests in TFS
Catlight 2.29 generates this link for me https://base.luware.com/Internal/_git/Production/pullrequest/6831 whereas in reality the link should be https://base.luware.com/Internal/Production/_git/Nimbus.TeamManager/pullrequest/6831?_a=files, where "Nimbus.TeamManager/" is the repository name.