I did a factory reset on my Canon, and a couple of test shots this morning appeared to have fixed the issue with whatever settings I screwed up.
I also picked up a couple of new memory cards (64GB) since they were on sale, and the 32GB card that I was using was producing a ‘cannot read card’ error message. I initially thought that the off brand replacement battery may have been causing the error, as some folks had been stating online, but it happened when I used the stock battery with the camera as well.
I need to start taking pictures again. Maybe my toy rocket will go on a mission this weekend.