I've got the latest version of Clickteam Fusion 2.5 on Steam and just yesterday my transitions just magically stopped working. Transitions don't work on any frame or any object. All I was doing was rewatching a animation on a frame play out and on the second time I watched it, my transitions broke. It's vital for my transitions to work because they make it easier on me make objects disappear in my game instead of manually doing it.
But that's not all, I'm not the only person who's having this problem.
My friend bought Clickteam Fusion 2.5 on Steam the same day as me, and he started having this same problem happen to him a few months ago and he hasn't found a way to fix it.
Is there a way to fix this? I'd really like to know! This has been bugging me ever since it happened.