I just updated both my C7 and C8 Pro to the .138 since both failed in the last 2 days with the C7 database corrupting and the C8 locking up without logging a reason why. I figured it was best to get them both updated.
The hub didn't come back up at the correct IP after the update, so I found the new IP and checked its network settings where it still showed the correct static IP settings. I had to click "Save and switch to static IP" and then reboot to have it take effect.
I was using static IP on my C8 Pro due to this issue: C-8 Pro - local DNS fails after DHCP lease renews, but this issue may have just solved that one. I just realized I had the same MAC address listed for both hubs in the router reservations. I'm surprised it allowed that (running OpenWRT). I'm going to switch back to DHCP and see if I have any issues.