Pipeline jobs not being updated when .gitlab-ci.yml file changes

Summary

Pipeline jobs not being updated when .gitlab-ci.yml file changes.

Steps to reproduce

I modified the .gitlab-ci.yml file, checked if it's valid with the linter and pushed to git (on master branch). But then the pipeline jobs are still the same, nothing changed.

What is the current bug behavior?

Pipeline jobs are not being updated after multiple changes in .gitlab-ci.yml file. It seems that somehow it uses the old version.

What is the expected correct behavior?

The correct jobs described in .gitlab-ci.yml file.

Results of GitLab environment info

System information
System:         Ubuntu 14.04
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
Sidekiq Version:4.2.7

GitLab information
Version:        8.17.1
Revision:       8943e22
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     postgresql
URL:            http://gitlab.onepoint.ro
HTTP Clone URL: http://gitlab.onepoint.ro/some-group/some-project.git
SSH Clone URL:  git@gitlab.onepoint.ro:some-group/some-project.git
Using LDAP:     no
Using Omniauth: no

GitLab Shell
Version:        4.1.1
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

Checking GitLab Shell ...

GitLab Shell version >= 4.1.1 ? ... OK (4.1.1)
Repo base directory exists?
default... yes
Repo storage directories are symlinks?
default... no
Repo paths owned by git:git?
default... yes
Repo paths access is drwxrws---?
default... yes
hooks directories in repos are links: ... 
1/1 ... ok
15/8 ... ok
13/9 ... ok
21/10 ... ok
13/13 ... ok
21/14 ... ok
22/15 ... ok
13/17 ... ok
13/18 ... ok
23/19 ... ok
15/20 ... ok
15/21 ... ok
25/22 ... ok
13/23 ... ok
22/24 ... ok
15/25 ... ok
15/26 ... ok
15/27 ... ok
27/28 ... ok
13/29 ... ok
13/30 ... ok
11/31 ... repository is empty
13/33 ... ok
13/34 ... ok
15/35 ... ok
22/36 ... ok
13/40 ... ok
6/41 ... ok
15/42 ... ok
22/46 ... ok
23/47 ... ok
37/48 ... ok
15/49 ... ok
13/51 ... ok
23/52 ... ok
15/53 ... ok
13/55 ... ok
15/56 ... ok
13/57 ... ok
15/58 ... ok
41/59 ... ok
2/60 ... repository is empty
13/61 ... ok
43/67 ... ok
43/68 ... ok
46/71 ... ok
44/72 ... ok
41/73 ... ok
2/75 ... ok
15/76 ... ok
57/78 ... ok
59/79 ... ok
2/80 ... ok
13/82 ... ok
13/83 ... ok
13/85 ... ok
59/86 ... ok
15/87 ... ok
59/88 ... ok
15/92 ... ok
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Access to /var/opt/gitlab/.ssh/authorized_keys: OK
Send ping to redis server: OK
gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Sidekiq ...

Running? ... yes
Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Checking Reply by email ...

Reply by email is disabled in config/gitlab.yml

Checking Reply by email ... Finished

Checking LDAP ...

LDAP is disabled in config/gitlab.yml

Checking LDAP ... Finished

Checking GitLab ...

Git configured with autocrlf=input? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config outdated? ... no
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory setup correctly? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
projects have namespace: ... 
1/1 ... yes
15/8 ... yes
13/9 ... yes
21/10 ... yes
13/13 ... yes
21/14 ... yes
22/15 ... yes
13/17 ... yes
13/18 ... yes
23/19 ... yes
15/20 ... yes
15/21 ... yes
25/22 ... yes
13/23 ... yes
22/24 ... yes
15/25 ... yes
15/26 ... yes
15/27 ... yes
27/28 ... yes
13/29 ... yes
13/30 ... yes
11/31 ... yes
13/33 ... yes
13/34 ... yes
15/35 ... yes
22/36 ... yes
13/40 ... yes
6/41 ... yes
15/42 ... yes
22/46 ... yes
23/47 ... yes
37/48 ... yes
15/49 ... yes
13/51 ... yes
23/52 ... yes
15/53 ... yes
13/55 ... yes
15/56 ... yes
13/57 ... yes
15/58 ... yes
41/59 ... yes
2/60 ... yes
13/61 ... yes
43/67 ... yes
43/68 ... yes
46/71 ... yes
44/72 ... yes
41/73 ... yes
2/75 ... yes
15/76 ... yes
57/78 ... yes
59/79 ... yes
2/80 ... yes
13/82 ... yes
13/83 ... yes
13/85 ... yes
59/86 ... yes
15/87 ... yes
59/88 ... yes
15/92 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.1.0 ? ... yes (2.3.3)
Your git bin path is "/opt/gitlab/embedded/bin/git"
Git version >= 2.7.3 ? ... yes (2.10.2)
Active users: 33

Checking GitLab ... Finished