Installation of Fedora 42 failed when installing the bootloader. Installer WebUI Critical Error: org.fedoraproject.Anaconda.Error: 'utf-8' codec can't decode byte 0xff in position 106: invalid start byte Please attach the log file /tmp/webui.log to the issue.
Created attachment 2088300 [details] /tmp/webui.log
I turned "Secure Boot" on in the BIOS after having deleted all the existing partitions that were on the hard disk I was trying to install Fedora 42 to, and the problem stopped occuring. I think it was the Secure Boot that was doing it though, because after I enabled that is when I stopped seeing this bug.
So I guess this is another duplicate of bug 2254801
Fixed in anaconda-43.17-1.fc43 *** This bug has been marked as a duplicate of bug 2254801 ***