Hey there @aaronlowe81
It's been under the site dev scope for a while but it's not a simple issue since this is due to general Web settings & rules to automatically start video playback with audio Off. I've been trying to tweak different Web browsers settings and set exception rules for the site but it doesn't work.
So the easiest way right now is to click on the muted sound icon as soon as the new video starts, I know it's a bit annoying but so far there's no way to avoid this.
Hope this helps answering your question.