[2.41>2.43] Broken grayscale rendering

[captaincavern]

Hello, since 2.41, I get incorrect rendering of downsized grayscale images.

[xnview]

could you post a screenshot?

[captaincavern]

I have attached a screenshot. That's when I load the image directly from windows explorer. If it loads from browsing from within xnview it is yellow and green and changing the zoom factor yelds other colors, red and black or magenta and blue. It also happens on a loaded true color image after converting to grayscale.

[captaincavern]

I just saw a similar topic in the general support subforum and I can use the suggested fix successfully. After setting use alpha to 1 (in the registry in my case) rendering is normal again.