It looks like camera faithful is the most accurate. A bit drab but it's a better starting point. Camera Standard looks less saturated than Adobe Standard but more so than ZB and the actual color. I do not know how to make my own preset so I will need to research that. But no, I never had a problem with any of my other Sigmas.

I did notice that I have ACR 6.6 so I will download 6.7 and see if that helps or makes it worse.