Has anyone made the new MX-990 work talking directly to Crestrons 418 gateways over RF?

We have been using the Yahoo Groups MX-850 code set forever, first with the 900, then the 890. The exact same codes don't work with the 990 over RF.

Also if I create a new remote in CCP and add two devices, one with the Crestron code set from their own database and one with a Denon, the Denon codes over RF works fine but the Crestron codeset doesn't. Tried switching up the RFID, no change.