We’re saying the same thing. Whether it occured because of the update or during the update either due to the update itself or the hardware or the previous software, the system was borked. There’s no way to tell what the actual cause was as too many varibles were changed at once, as my system has been running for a 2-3 years with a few bit of unknowns installed before the update, and this live iso is more or less from March and rather lean yet i’ve had issues installing on a few random pcs that i’ve come across using this exact usb drive using the same iso file. Here is a link to a problem i had with it on a laptop, and all i did was reinstall again to fix it. It happens on windows too, planets/moon/sun or something in the wrong spot lol.