2.3.10 was a very small change that only affected one provider. The behaviors you're describing must be caused by something else. It sounds like maybe it's having trouble requesting the master content list. It will give up after 30s if it can't retrieve that data at launch.
Yes i probably shouldn't overstate the problem, it was totally fine today, and what you described could be an internet delay on my end. Its easy to jump to conclusions when you see the new version number and something happens that particular time. I aways sweat updates, especially in this kind of situation where something is valuable to you and theres no getting back to the old version. The fact is the only consistant problem I've every had was Chris Hayes talking like MickeyMouse but thats long gone. Really appreciate your work Chris.