Then i ould say it is a UEFI - Boot problem not about the Stick itself…
Boot up a usb stick from UEFI Bios is tricky sometimes.
Can you share more Info about your UEFI/BIOS ?
You may need to disable secure boot inside and need to add the Stick manually to boot List inside UEFI-Bios… Also possible on some UEFI-Systems is to boot from File you can choose out of the Stick path…
[updates once a week] = [90% less problems]
how to add system logs:
wget http://bit.ly/2GCG9k2 && sh 2GCG9k2
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