I started my first walk cycle, but for some reason I can’t get it seamless. The last pose is the same as the first, but the second from last and last poses don’t blend together well. You can see this as the ‘pop’ after every cycle in the video. C & C welcome.
From the vid, It looks like it’s the torso that’s popping.back at the last frame. Maybe replace the last key on the torso. I tried to download your blend file but I got a server error.
Re-keyed the torso a bit on the last frame of the cycle. The shoulders and hips kind of snap back and forth, but that’s my fault. The snapping of the arms can be fixed by more tweaking of the animation, but look at how the feet pop forward…