Hi again… I decided to just make my animation slower by increasing the frames it uses… I had originally set its display rate to 60 fps but cut the animation down to 18 frames.
But now I have expanded the animation to use the full 60 frames as I think the skewed fps / actual frames had something to do with the animation cancelling.
This however had made the animation really slow looking, so I decided to increase the rate scale to 2.5 in the animation sequence to make it appear the proper speed.
This seems to have solved my problem and I hope it does for you too if you are still looking for a solution.