We are using Jenkins with LDAP access control and Project-based Matrix Authorization Strategy.
So user can defined User Credentials.
However User Credentials are not listed in the list of credentials in my job, only system credentials are displayed (for instance when selecting GIT credentials to access Bitbucket).
We tried User Global and Domain Credential with the same negative result.
It is a fresh Jenkins install.
The configuration looks OK, I am admin and I have all the rights activated at system and job level.
I tested with various web browsers and got the same result.
Some related unanswered questions I found: