RC1_Rev and RC2_Rev not working

Hi Everyone, I’m trying to setup my delta on Elevon_Output. I can get the roll or pitch working right, but not together. I set it up so the roll is correct and in FBW mode the APM tries to counter the roll, but the elevator movement is not counter active. When I change RC2_Rev=-1 nothing changes. I’ve tried changing RC1_Rev and RC2_Rev from 1 to -1, and nothing happens, the servos will not reverse. Any suggestions on why channel reversing is not working?

Did you ever figure this out? I’m having the same problem.