Game #166722150.
A player played Sycophant using Way of the Chameleon and discarded 3 copies of Trail. They were given the option to trigger Trail's reaction with the red "3" indicating that all 3 copies had triggered. However, when they clicked on that box, only one copy of Trail triggered.
When the Sycophant was played by your opponent, their draw pile was empty. So they discarded the three Trails, but playing the first Trail caused a shuffle, so the other two Trails (as part of the discard pile) where shuffled into the new draw pile. The triggered effects of the other two Trails tried to find them in the discard pile, but couldn't, so those effects lost track of the Trails and couldn't play them.
Thank you!