Thank you Dan C. for the group message to the 14 of us who had posted about the 1.9 updates crashing on launch. I personally only had problems with Affinity Photo 1.9. I went through all the suggestions in your list and didn't have much luck. The driver is up-to-date (I wasn't surprised since this is a new computer - only 3 months old). I couldn't find anything else relevant to my problem. But somewhere it mentioned to make sure I had the latest Windows update. So tried that thinking I did have the latest since I get automatic updates. But there was one available so I asked for that one to be installed. It took almost an hour and a half but when It was done I had Windows Version 20H2. I've always had versions numbered like 1909 so this looks new to me. Anyway when I logged into my computer I tried starting Photo 1.9 and it started up but while it got further into the start up it wasn't acting quite right. I exited the program and immediately launched it again. The second time it seemed to be working right! I loaded a couple old projects I had completed and they seemed right. I guess it is too early to say for sure but I think that solved MY problem and may solve others.
I really appreciate all the work you did, Dan, to find all those relevant links. They scared me because I'm not very tech-savvy when it comes to the inner-workings of the computer. But the instructions were so well written even I could follow them.
So thanks again,
Frank