You must read and apply the notes related to sap note 440231 before performing SU25 (particularly ones related to loss of data).
You must never click on the button "Accept SAP file" in step 2b! Probably you did that...
An open field proposal for RFC_NAME makes no sense so you should actually report it to SAP. Was it in an SD role?
If a parameter tcodes dont have own proposals, then the inherit the proposal of the parameterized tcode. But SA38 is a bad choice - should have been START_REPORT.. so you should report that to SAP as well actually.
Cheers,
Julius