The USB boots well with the KDE version but doesn’t boot with the GNOME version.
Welcome to GRUB!
error: invalid arch-independent ELF magic
Entering rescue mode…
grub rescue >
Screnshot at https://imgur.com/W4i8CuN
Already burn the iso with BalenaEtcher, KParted and GParted with the exact same result.
Read
and post inxi and ISO name from both.
and
is it when you start to boot the usb installation
or after the instalation ???
did you have another system running on same hdd
maybe old installation
or you have old files on your usb stick
pls try clean installation with formatted usb stick
and clean hdd with no old boot partition sometimes they are locked and can't read from gparted
only helps format and restart so partition is not loaded and can deleted
Also make sure you verify the image checksum to make sure it was downloaded correctly. If KDE works then GNOME should also work - while the DE is different the underlying operating system is exactly the same.
Image checksums where correct.
Did the burn on the USB using DD and it solved the issue and it boots.
In fact I'm writing this using the live Gnome USB 
sudo dd if=file.iso of=/dev/sdX