Boot logo suddenly not working anymore

I'm using ptxdist on my Mini2440. For some reason my boot logo just stopped
working. I did not edit the kernel or file system at all! I've just been
developing Qt applications. How can this happen?

What is even more weird is that I have a mirror image of the exact same
development system (VM) and when I load my bootloader, kernel and
filesystem from that image the boot logo is still working.

I compared all the settings between the working and broken development
systems and all settings are exactly the same (kernelconfig and menuconfig)

I even compared the console output after loading the bootloader, kernel and
file system from the two development systems and they look exactly the
same.

I would like to resolve this without having to use the working mirror
image.

What can this be? What can I look for? How can I resolve it?

The boologo requires CONFIG_VT=y, CONFIG_FRAMEBUFFER_CONSOLE=y and
CONFIG_LOGO=y. Are you sure these settings are still valid in the binary
kernel image from your *non* mirror image? Did you check the md5sums of
both kernel images to check if they are really the same? Are the kernel
command lines in both images are the same at runtime (check cat
"/proc/cmdline")?