VCV 2and Ableton 11 Suite - clip only plays the first note.

I was watching Omri’s 45 minute tutorial (How to use VCV 2 VST with Ableton Live 11 Suite - YouTube - this guy is a gem!) on Rack 2 and Ableton. I can only get the first note in a midi clip to play. I have a clip very much like his with the same VCV patch, and I can play notes in VCV with my keyboard, but the clip will only play the first note. All the notes are of similar velocity. If I play the virtual keyboard in the midi roll, they create a sound, but not when the clip is trying to play them. Any ideas?