TeamCity CI integrations broken

Summary

TeamCity build status is not displayed on GitLab for merge requests. However, the service integration is working as desired ('Test Call' works fine)

Steps to reproduce

1. Active Jetbrains TeamCity Integration
2. Open MR
3. Watch MR

What is the current bug behavior?

The first time the MR displays 'Could not contact the CI server'. However, after a page reload the whole box is missing.

What is the expected correct behavior?

I'd like to see the build status of the MR (worked in 8.x at least)

Relevant logs and/or screenshots

Software used: GitLab 9.2.2-ce.0 TeamCity 2017.1.1

JS error on the MR page: vue.esm.js:1447 TypeError: Cannot read property 'status' of undefined at a.status (mr_widget_pipeline.js:27) at go.JTVE.go.get (vue.esm.js:2467) at go.JTVE.go.evaluate (vue.esm.js:2567) at a.status (vue.esm.js:2811) at a.eval (eval at pi (vue.esm.js:8959), <anonymous>:2:491) at a.JTVE.t._render (vue.esm.js:3607) at a.r (vue.esm.js:2156) at go.JTVE.go.get (vue.esm.js:2467) at new go (vue.esm.js:2450) at ct (vue.esm.js:2160)

Output of checks

(If you are reporting a bug on GitLab.com, write: This bug happens on GitLab.com)

Results of GitLab environment info

Expand for output related to GitLab environment info

System information
System:
Current User:   git
Using RVM:      no
Ruby Version:   2.3.3p222
Gem Version:    2.6.6
Bundler Version:1.13.7
Rake Version:   10.5.0
Redis Version:  3.2.5
Git Version:    2.11.1
Sidekiq Version:5.0.0
GitLab information
Version:        9.2.2
Revision:       cbde95c
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     mysql2
URL:            https://git.xx.cc
HTTP Clone URL: https://git.xx.cc/some-group/some-project.git
SSH Clone URL:  git@git.xx.cc:some-group/some-project.git
Using LDAP:     yes
Using Omniauth: no
GitLab Shell
Version:        5.0.4
Repository storage paths:

• default: /var/opt/gitlab/git-data/repositories Hooks: /opt/gitlab/embedded/service/gitlab-shell/hooks Git: /opt/gitlab/embedded/bin/git

Results of GitLab application Check

Everything ok

Possible fixes

/<project>/merge_requests/316/ci_environments_status always returns [] - i suspect a bug / wrong handling in this call for the TeamCity integration service