kyrios That would be an embarrassing request even from me...
The partition scheme and target system buttons are split from the single button and have different verbiage, and you have 4096 and quick format checked, neither which are recommended in the install picture (I know your pic is a demo), so I can see where one would be hesitant. But the question is does the 3.5.XXX work in creating a functioning solus iso install usb? It should, somehow.
That's something I might experiment with if you haven't already. Will report back upon success. Or failure.