Can confirm. If my passive is already applied, usually with E, and there are minions near the enemy champ, and I use my ult on the enemy champ, it should hit the champ, then hit the minion, then hit the champ again, and so forth. It does not do that. It either hits the champ then hits random minions or simply disappears after hitting the enemy champ. I understand the range of the ult bounce and the fact that it will disappear if it cannot hit a new target but the new targets are well within range. I also understand my ult will not prioritize champs if the passive is applied by the ult itself, the passive is already applied, usually with E.