Just upgraded from 6.5 to 6.5.1 on my mid-2012 MacBook Pro running MacOS 10.14.5. Whenever I open or create a new image, Acorn is shifting the color on my display (everything gets a blueish tint) system-wide until I quit it. This never happened before. What’s going on???
It sounds like something on the GPU is going a little haywire. I’ve never heard of this happening, so I’m hopeful that it’s going to be a one time thing. So if you reboot, does the problem still occur?