Yeah, I find it weird, I have MnM, Octa, and this is the first machine where it doesn’t work. DT also have a strange midi routing, you can not pass thru to external channel, you have to use autochannel, which is really not handy in live situation.
To complete the DN midi issue, here are image of System / Midi Config / Channels :
During my testing, I found an other feature/stuff : when selecting sound (double tap track) into the pool, you have to put your external keyboard on autochannel, otherwise it only work with the DN keys.
And I will launch a ticket, cause I found other bugs with fnct+syn menu (I succeed to repeat it, but I don’t understand, TRIG button appears violet sometimes) :