I'm testing Blue Ocean Plugin and Gitlab Branch Source Plugin but I get "Page not found (404)" when I try to open any job created by Gitlab Branch Source Plugin. We use a lot of subgroups on Gitlab and maybe this is the reason.
One example is:
Job path on classic view: https://myjenkins/jenkins/job/group-giltlab-branch-source/job/subgroup%20%252F%20project/
Job path on Blue Ocean view (get error): https://myjenkins/jenkins/blue/organizations/jenkins/group-giltlab-branch-source%2Fsubgroup%20%252F%20project/activity
Blue Ocean version: 1.23.0
Gitlab Branch Source version: 1.4.6
Jenkins Version: 2.204.2