Ventoy no longer boots

[balanga]

I had a working version of Ventoy which I was very happy with, but it no longer boots.

I created an additional partition on my Ventoy disk and installed Linux (OpenSuse) on it. That installed it's own grub and now when I boot, the system starts OpenSuse.

How do I recover Ventoy's grub loader?

[balanga]

I found that running Ventoy2Disk.sh -u managed to restore partition 2 and make Ventoy bootable again.