GitLab 8.5.1 should include Mattermost 2.0, but your log files say you're using Mattermost 1.4.
Please upgrade to Mattermost 2.0, install Mattermost iOS app 2.0 and try the procedure again?
GitLab 8.5.1 should include Mattermost 2.0, but your log files say you're using Mattermost 1.4.
Please upgrade to Mattermost 2.0, install Mattermost iOS app 2.0 and try the procedure again?