Explains why LEGO had a leg up for multiple years. You can’t just change the color pigments and hope the parts fit in the same way. Of course these times are over and other brick manufacturers caught up or overtook Lego.
Just want to mention I have no beef or issue with Lego. I say that you get great offerings from other brands as well now.
LEGO issued an official apology and you can get replacements for your brown bricks made before 2018. (=
https://brickshow.com/2018/12/problem-lego-reddish-brown-bri...