Using op-z midi to trigger drums on op-1 field

When I have op-1f connected to op-z, only the middle octaves will trigger midi notes when recording from the op-z to the field drums. Is this a bug or something intentional? Are other people having this issue?

Thanks for the reply. So….I’m guessing it was intentional. I find it strange that the field allows you to change the pitch of the drum samples by going down or up octaves on their keyboard, but it won’t let if you’re using the op-z to trigger the notes.