I took the advice given here to delet and reinstall. I did my iPad first. It started with the beginning animation, then
Went to download content, then started with my correct game progress. Did the same with my iPhone with same results. Seems to be fine, although like many others, I was terrified I would lose it all. I think I have enough time to finish getting the 150 bots, but it will be close with drs appts where phones must be turned off, even if you're left sitting in exam room for 45 minutes. Oh well, it's just a game. And I enjoy it even with the occasional hiccup.