This may be related to issues noted in the forum before about notes not re-triggering.
Here is an example where I am sending a MIDI note from Ableton into Hermod (via USB) and you can see that if the note starts and ends for the the full bar, the note does not get triggered again.
The work around is to shorten the note by a tiny amount or move it from the start position ever so slightly late.
Maybe I am doing something wrong? If not, please can this be amended so that I can make accurate and meaningful musical compositions.