Plocks (mainly fx sends) not working on track with ARP

I honestly don’t use the Arp much on my A4 (sequencer does so good without most times) but I was experimenting with my DN last night and couldn’t get most of the Plocks to work. Note settings work but I know for sure all the fx sends did nothing. I basically wanted one note of the ARP to quickly send to the delay. Whether I plocked on the trig or a noteless trig, nothing happened. My A4 is boxed up at the moment but I’ll test that this weekend.
Is this a bug or am I missing something?