I have a 7th gen iPad that is limited to iPadOS 18. With the release of 18.7.7 it offered the update to me. It downloads just fine, and presents me with the Install button. Touching that, it grinds briefly saying Verifying Update, but then gives me a popup saying that 18.7.7 is temporarily unavailable (even though it just downloaded it). I've tried multiple times over 2 days, and have also rebooted the iPad for good measure and deleted the update download to force it to download again. Anyone else seeing this? Do I just need to keep trying or is there actually an issue?