Hi Daniel,
This is a bug in Solution Manager 7.1 SP10.
Please follow below SAP notes to solve these :
1971257 - RFC Destination Not Created in Managed System Configuration
1971260 - Roles Not Uploaded to Managed System When Creating RFC Destinations in solman_setup
1830640 - Authorizations for SAP Solution Manager RFC users as of SP09
Regards,
Manish