Ok so I’ve seen eaves’ video previously and I think that this method which the digis use to mute another digi might not work here, because OT uses audio mutes and I see that CC 49 is for OT external mute.
You can try it, but I suspect you need to set up the rytm for performance mode or scenes to send midi cc 49 from the pads to mute the OT.
Definitely try the method in the video though, it would be less setup. I don’t have the gear to test it unfortunately.