When upgrading software that isn't instant, if you finish it, and start a new upgrade right after, the progress bar does not appear and the upgrade wont finish. Reloading the screen does finish the upgrade, or show the progress bar if it hasn't.
Dear player, thank you for your valuable comment. It helped us fix a bug with software updates. Now, if you want, you can try updating your software again without any problems. Best regards, Edo87