Hey Chris, I have that happen with a couple of my live sports apps but i think its a feature not a bug. At least on my apps. I leave a baseball game and it will pause where I left off. I now have two options. continue watching where I was or just manually moving the slider all the way to the right back to the live action. It is the version of DVRs live TV pause button.
I usually fastforward to live action but if I just need to get a drink, I like the ability to not miss any action.
Maybe yours actually doesn't allow that which would definitely seem to be an app problem. Maybe delete and reinstall app? With the tennischannel app every couple months it gets so stuck I have to delete and reinstall