Cant preview timeline inside Matinee

Im trying to play my matinee inside the matinee editor to see how it looks but when I drag the timeline or press play it doesnt work. Could this be a bug or Im doing something wrong? Cause they worked fine when I first added them, and they work fine when playing the game, but I cant see how they look inside the matinee editor.

Is Real Time enabled in the viewport?

Strangely enough its working now. Thanks anyway! I checked and I already had it turned it on. Ill leave it here, it might help someone in the future :D.