Yesterday evening I had the weirdest experience as I was preparing to let both the iPad and the app forScore update. I never allow automatic updates, nor do most savvy musicians I know who use the various music-oriented apps. Keep everything stable, and wait till after any critical rehearsals or any performances at all to do that, because you NEVER know what unexpected oddities will occur.
Anyhoo, I did my backing up and archiving (it's two processes) of all the musical scores in my library and moved those files to a different folder in case the whole thing explodes on me. Then I updated forScore, which took all of half a minute or so.
I then looked at my current operating system and didn't see a notice about there being an update, which seemed weird because I'd been getting their warnings about that. I'd forgotten that that's in a specific place. At that point I got sidetracked with a couple of emails that needed replies. In so doing, I found a HUGE LAG in the typing. It would take half a minute for the keyboard to even come up, then a similar amount of time for typing to catch up. I restarted a couple of times, which didn't help. Then - while blaming the iPad update, but forgetting that I hadn't even done that yet (are you following along here?) - I thought I'd better also update the apps themselves in case the "Typefinity" keyboard I use needed it. That didn't help matters either, so I just experimented to see which apps I could type normally in, and which had the huge lag. Gmail was a disaster, as was this site, but I could type okay on Facebook and a couple of other things. At that point I closed the thing and put the problem off while getting a little food.
When I came back, I was reminded that I, in fact, had NOT yet updated the iPad. But suddenly, now everything was working normally. So what in the holy HELL caused that? Talk about yer coincidences. Anyway, now feeling better about the whole thing, I finally went into the system stuff and selected the OS update. It began, but it's weird how the "preparing the update" process takes, like, half an hour before it begins its multiple shutdowns and restarts. But when the process was finally done, everything worked gloriously once again.
And that was my evening. And I know that, having followed along in detail, your lives are enriched beyond all expectation. You're welcome.