Approle namespace is missing after jenkins restart

[ofirmad]

Jenkins and plugins versions report

I have an approle credentials in my jaas.
Every time jenkins has a restart, the approle namespace is empty, as result I get an error in my jobs "invalid role ID".

What Operating System are you using (both controller, and any agents involved in the problem)?

any agents

Reproduction steps

restart jenkins
see that the namespace field in the credential is empty

Expected Results

Namespace field won't change

Actual Results

Namespace field is empty

Anything else?

Installed vault plugin 3.8.0