My USB with EndeavourOS not show in boot menu

Hello, I was trying to modify my disk size to make a new partition, then I decided to boot with a live USB but it don’t show in the boot menu!
It’s detected, secure boot is disabled and the USB is formatted correctly (previously I used the same USB for installing EOS).
Searching I found this comment click here to see, that’s make sense and “answer” why before the Live USB worked and now not.
Anyone has a workaround?

Thank you very mutch for help!

Which boot menu would that be? Can you go into your BIOS/UEFI and boot the stick from there? Can the stick boot on a different machine?

Ok I made a mistake. I forgot to go to the boot menu of the devices (F12), I expected it to appear in the systemd-boot menu.
Sorry and thanks