Hi Karl,
did you create this MIDI file on the computer "from scratch", or did you just edit a MIDI file that was recorded on the Genos before (or a commercial MIDI file) on the computer?
If the former is the case: Has it been ensured that the MIDI file contains the necessary resets (GM and XG reset) as well as the setting of a certain Reverb Type and an event to set the Reverb Send Level (CC 91)?
If you want to use an Insert Effect block for the Drum reverb, the corresponding SysEx should be in the MIDI file. (In this case the send level for the system REVERB effect block should be set to zero via CC 91).
By the way: The system CHORUS send level should be set to zero for drum channels or, if necessary, only turned up very slightly (via CC 93).
My recommendation is alwas to begin with a MIDI (Quick) recording directly on the keyboard. Then import this MIDI file into the DAW on the computer. This way you will automatically have many of the required MIDI controllers and SysEx events in the MIDI file.
Best regards,
Chris