SAST UI report is not present in merge request widget (tab)

Hello

Trying to get the SAST report in UI in the merge requests tab but instead of this can only see this:


The expected result is to see this:

As i see from documentation such reports should be present out of the box in all versions, not in Ultimate only. Static Application Security Testing (SAST) | GitLab
So, where is the problem then? Please advise how to get the UI report for SAST. Thanks in advance.