Remember one thing, and this is the reason why I don't use Mutiboot, you cannot mix the SSL/Drivers having different ones, these must be all the same for all images in multiboot.

So personally I flash only 1 image / box. The v3 sim is compatible with the v3-v5 images, so just flash the image, but remember that we released on these new images, new drivers, so these are different from the old drivers we used with v22... so if falls on the "no compatibility" category between images that doesn't have the same drivers.

TS