Just want to point out, I am also on apple Tv and have had issues locating robo pacer on certain routes. Today specifically Maria in Waptopia. I could connect to Maria in Makuri though. I also tried Miguel in Waptopia and that did not work either.
This issue is now being addressed. It looks like this is more likely to happen if you remain on the RoboPacer side sheet for too long before selecting Start Ride, so quickly jumping into a pacer ride should increase the likelihood of joining the pacer without a problem.
Hey all - this bug is fixed in Zwift v 1.40, which began phased rollout today. Over the next couple of days, it will be available to everyone on all OS platforms. Please update at your earliest convenience.