Bug - Note-Off problems

I think I’m onto a bug. Basically a pipeline gets itself into a state where it will only generate note off messages, and wont generate any note on messages. Frustrating silence.

Currently this is happening with an ARP pipe, but I’ve had it happen with a Harmoniser pipe in the past.
I’m not sure how to recreate it exactly, I’m using a midi feedback loop to map lfo cc’s to the arpeggiator’s parameters (rate and note length) if that helps. I also map some other CCs.
Midihub 2021.09.30 22.26.45 (Preset 1).mhp (1.1 KB)