Sometimes forcing the system to start with a single stick of RAM, then populating the other slots after one or more restarts can resolve this behavior. Or, the XMP info or power parameters are incorrect in F22 which is why you cannot get 3200 out of your RAM.
If you have reset the BIOS and still cannot get full speed from the RAM using manual settings, your options are:
Flashback to previous build that worked, or switch to the back up BIOS and wait for a new revision to become available. I doubt 400Mhz difference clock speed of your memory will even be measurable or noticeable.