I'm standing in the airport and wont return for dsys.
@AntonioPt U see the 'debugsave' offered when it didn't boot. Did you run it to capture? If so, post that file as any developer, here, will know the solution for future release.
You do NOT have a USB problem as your USB is booting fine.
IN the meantime, simplest solution while you wait for the next F96 version, do this:
Make a folder on Ventoy partition #1 named "BOOTISOS"and MOVE ALL ISO files into it.
Add the SuperGrub2Disk ISO file to the folder too.
Boot Ventoy USB, select SG2D ISO file, hit the enter key on its menu
When SG2D completes, all your ISO files are at the bottom of its screen.
ALL forum PUPs-DOGs (except 1) will boot.
Add ALL future ISO files to the BOOTISOS folder and expect that both Ventoy & SG2D will find ISOs in the folder and list them for your selection.
Back next week
P.S. SG2D boots ALL PUP-DOGs while Ventoy, newer, boot only a few. But, noted that recent PUPs, Slacko v7, KLV, KLU, etc are now able to boot directly from Ventoy.