"Live" USBs not working

Yes to MX-21.3 February_64.iso --yes,-- at least that is the label of the folder in the live USB.

Hi BeachBoy2,
I re-made the disk using GParted but I don't see "ESP" repeated. It only appears in the "boot" [?] partition together with "boot".

Also, you mentioned mount points but GParted does not show any mount points or a place for me to add them.
I clicked on "Detai;s" but it didn't show me anything I wanted.

You referenced the "Instillation drive" which I assume is the 10 gig drive. Am I correct?

Forgot to add: I get a yellow-backed exclamation mark by the [green] Fat32 drive. What does that indicate?