If none of that works, I'd recommend that you make your own transitions and report the bug to Clickteam.
OK. So today, I just got back into Clickteam, and the transitions work again! But you can still comment here in case they stop working again.
This is a widget written by Danny that will give you the fade effect without having to use the built-in function.
Why do you keep bumping the thread? You have not clearly asked for anything that would be waiting for a response. If you found a bug, then you need to report it in the Bug Tracker. And until you register your product, you probably won't be getting much help or be taken seriously by senior members.