Animations pause for a slight moment when reaching end frame I recently copied over some Blender files from my old computer to my new one.

I noticed the the animations are freezing on the last frame for just a moment. This is making my animation loops not seamless and choppy at the end of the animation. I pulled up the same file on my old computer and it was fine but for some reason it doesn't work on my laptop.
Try reducing the length of the sequence by 1 frame (so rather than, say, starting on from 1 and ending on frame 300, end on frame 299).