Hi All,
I want to set approval for some step in JIRA service desk and the approvers is set by default. I have done creating custom field for multiusers-picker and attach to the project then added it in workflow for approval, but It ended up like this

As can you see the approvers on People section is filled by default, but on Approvals section No approvers selected.
For information, we are using JIRA on-prem not cloud and the version is v8.7.1.
Can you help for this please?
Many thanks,
Gandhi