Matinee just doesn't work half the time

Thank you for the reply. I’m getting frustrated over this, a fix that I found to work some times is to just delete the matinee that I’ve made and start all over. Usually the way I set movement, a fade, or change the FOV. I select a track; movement, a effect, or the FOV, then a time on the timeline. Changed whatever track I selected in the viewport. Then I’ll add a Keyframe so it’ll transition to that point, changing what I’ve selected. Here’s screenshots of one of my matinee actor

Also, where the camera is placed. I wanted to look out the window, turn left right left, and on the last left change the FOV from 90 to 65. But it wasn’t working, so I made a second camera already facing that direction and set the FOV to change

I would have just sent screenshots of the fading probleming I have having, but after I saved, closed Unreal 4, shut down my machine to sleep, started on it the next day and it worked all out of nowhere. Without me having to redo anything.