In my project, the blink animation is made by switching the eyeball slot off, and switching the eyeslash on.
I use 30fps as the editor framerate, but the eyeslash disappears with a lag on 60fps or higher framerate due to the interpolation.

Close eye on frame 3:

Open eye on frame 4:

If the animation is playing slowly (simulation of high framerate):

The wrong effect due to the interpolation:

Is there something like a step curve to improve this situation, to disable the slot immediately after current frame, instead of waiting until next frame? :think:

Thank you!