I’m stuck, tried many options none of them work. I have a spaceship parented to empty, empty is following path, in preview everything looks ok, but in render some frames are like the empty would speed up for one frame, and went back in place. Spaceship is rigged with armature and drivers mix, it also has particles hair on it. Tried fixed position checkbox and without it, tried nurbs path vs bezier, baking hair particles on ship, baking follow path animation, apply location and rotation on empty, issue still remains. It happend once in the past, but this was one frame so I just replaced it with duplicate of previous one as a workaround, so now I decided to test it first with quick workbench render, and it gives me about 20 of this bad frames out of 600. Where the issue might be? I’ts like empty couldn’t keep up for one frame randomly, and I don’t have any Ideas left. Camera also double checked. Only thing it seems to have impact would be number of particles, but not sure is it really connection or just lucky render.
Also not sure if this is normal empty on path behaviour, once I go frame back it changes position relative to the ship.