When you hover over a demon that’s dormant because of Demon Hunter’s Summoning Ritual treasure, the buff description says “Dormant. Awaken in @ | 4(turn, turns).” I would post a screenshot of it, but for some reason we’re not allowed to post screenshots of bugs in the bug report forum. This bug happened on the PC version of the game. I have not checked other versions.
if only there were a pinned thread exactly detailing how to include screenshots… oh wait there is!