Denon AVR-X3300W missing codes - found workaround

I tried adding my Denon AVR-X3300W to my remote. It can find the model in the database, but the codes it downloads appear to be either incomplete or for a different device. Power works (so maybe not a different device), but it's missing the input switching commands (Bluray, Media Player, Game, etc.), the various surround modes, Setup, and it only has a single "Power" toggle command - not the discrete "Power On" and "Power Off" commands that the receiver supports (which are preferred). I tried adding the AVR-X4300W instead (same model year, next model up, mostly the same features), and that worked! It has the separate power commands, all the inputs, the various sound modes - everything it should have. This is what the AVR-X3300W's codebase should look like. This is not a solution, only a workaround. Please fix it!