Debian testing netiso not booting on ventoy

Hi everyone,

This is my first post to a debian mailing list and I hope, this is the 
right place.

Today, I downloaded the latest debian testing netiso ( version from 
2024-06-28 17:19) and stored it on my ventoy usb flash drive.

The installer asked for the language, as usual; I selected German. After 
some seconds, it showed the error message: Can't find installation media.

I double-checked the checksum - the iso is not corrupted. I also tried 
to boot an old debian 12.5 netiso, which works just fine. Maybe some 
information about my system: I'm using UEFI and saw this behavior on two 
different systems. A T480 and an Intel Haswell machine.


Cheers,

Daniel