Custom Percussion Map not showing as an option when importing MIDI

I am trying to export midi from a BFD3 drum part I have programmed in Cubase and import it into Dorico.

I created a custom Percussion Map corresponding to how the drums are laid out in the BFD3 Patch in Cubase.

However, when I import the midi file that was exported from Cubase into Dorico, the BFD3 percussion map I made doesn’t show up as an option to tell Dorico which drums to map the midi notes to.

What am I doing wrong?