>>14509
Not OP, but are you letting the videos download/buffer completely? The file sizes and bitrates are quite high, so you won't be able to stream in real-time if you have a slower internet connection (as is the case with my 3Mbps aka 372KB/s DSL).

I had suggested to OP to maybe consider VP9 (rather than VP8) for higher quality with a smaller file siize, but OP didn't respond and their newest animation is still VP8, so...