Severe Color Shifts from RAW in LRC and LR with Sigma 45 L-Mount on Mac

This is one of the reasons why we really need the ability to turn off built-in lens profiles for all mirrorless cameras, not just a select few recent ones. Still can't understand why Adobe does not allow us to just do this in the interface instead of having to manually edit the raw file.

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

You attached a JPEG, which I assume is either a screenshot of Develop or exported from the DNG?  I see color artifacts in that JPEG, e.g. in the lower-right corner:

"13.0.2 with latest Mac OS Sonoma 14.0 on Intel"

You may be tripping over an extant problem with older Macs that first appeared in LR 12.4 and hasn't been resolved. To verify that's the issue here, click the Apple icon in the upper-left corner and do About This Mac. Post a full-resolution screenshot (not a phone pic) of the About window.
https://www.lightroomqueen.com/community/help/createscreenshot/

With that, we can likely provide the best information about which workarounds would apply.

This may have nothing to do with the camera or the lens, but with your OS and a LrC bug. This bug was specific to some MAC, and was fixed at LrC v13.0.1