Hi! I need some help with the time remaping. It is a template for titles and lower thirds. Usually i just place two keyframes in the begining and in the end of the composition and by moving them you can adjust duration. But recently i've found an expression which is binding two keyframes to a marker and by moving markers you can change duration. The problem is, that in the frame just before the second marker some things just dissapper. I've tested it in diffrenet versions of AE but the problem still there and i can't figure out why. All i can think of it there is something wrong with calcultaion of time.
It's Motion Blur issue. Namely, Motion Blur applied to shape layers of nested comp with animated Scale.
Due to the big time skip at the problem point, Motion Blur acts weirdly, sampling frames far from actual frame.
The "disappearing" elements are elements with applied Motion Blur that samples frames from time where Scale=0%.
By default Scale animations are rendered before Time Remap. Collapse Transformations makes them being rendered after Time Remap.
Another fix is to set Shutter Phase = 0 in nested comp settings (Advanced tab).