Keyframes not working?

Ok so i added a brightness and contrast effect to my clip and placed 4 keyframes. That's how i set it:

BRIGHTNESS:

1st keyframe: -100 (dark)

2nd keyframe: 100 (really bright)
3rd keyframe: 100 (really bright)
4th keyframe: 0 (standard)

everything was going great up to the 3rd keyframe, in which you could see the brightness up to 100. when i placed the 4th keyframe, the other keyframes appeared not to work, nothing had brightness, even though i had placed the other keyframes to 100 before the 4th one.

Ps. It worked only in 1 clip, it didnt work in the other ones though. I don't know what's going on what's the problem??

-Gian

Keyframes not working?

Is the clip time-remapped by any chance??Keyframes don't work properly on Time-remapped clips - the problem wasn't fixed in latest update.

If this is what it going on, then you can get around the bug by nesting the time-remapped clip and applying the keyframes to the nested clip.

Keyframes not working?

actually, it wasn't remapped, but the nesting trick did work thanks!
now i need to know how to mask -___-

(: