IT-Shop Access Request Approval

Hello all,
I'm having a problem regarding assigning groups as approvers for resource under governance access requests.

In the section of the Web Portal dedicated to approvers, a specific access group is preselected. When I select the "Select a group" option, I get a popup with the error "No groups were found that match the requested access".
This happens despite the fact that in the PersonWantsOrg in the "AdditionalData" field there are values ​​referring to the other groups present.

How can I fix this error? So how can I make the popup show the other groups?

Thank you!