2.2.4 Difficulty with Device Firmware Updater App

Good morning

I updated my C7 to 2.2.4 and attempted to update an Inovelli LZW42 bulb with 2.30 firmware, and the app is stuck. It just gives me this for hours. I aborted and tried a different bulb with the same result. What can I try next?

Whoops, solved it myself. Apparently the hub just needed a reboot. Devices are updating now!

Aaaand I spoke too soon. One bulb updated successfully, but the second got stuck at 8%. I aborted and switched to a different bulb, and it started at 8%, and remained stuck.

Then I rebooted again and went back into the app, and everything still shows at 8% and won't budge.

Nothing relevant in the logs...