Thanks for the video and debugging help. I'd say I'm surprised that gravity is having issues, but I've had troubles with the gravity implementation in my previous code so I'm not too surprised it's causing issues here. Something about gravity and the algorithm used do not like each other. For the animated mesh, I will need to investigate potential solutions and see what I can do. With both cases, I will add them to my TODO list and will look at them once I can.
Thanks again!