I’m having the same issue. However I’ve turned my Octatrack off and then on again and the issue hasn’t resolved.
The Octatrack should be sending midi note 52 (E) but instead sends note 51 (D#) despite the sequencer saying it’s sending an E. When I play the note I want in chromatic mode it plays just fine. As soon as it’s left to the sequencer it plays the wrong note even though the trig says the note I want.
I’ve checked the transpose in the arp is set to 0. LFO’s aren’t affecting anything either.
Anyone know a fix?