P: Object Selection not working for people or objects - Photoshop 2023

I just installed the latest update to Photoshop and am getting strange behaviour with the Object Selection tool. People, animals and objects are always selected with an uneven rectangular shape. Sky and landscape are selected correctly. Same results in Camera Raw. I am running Windows 11, Intel Core i9, Radeon Pro W6600 with 64g of RAM. Using the same image, my 16" Macbook Pro does not have this problem. I tried the usual deleting preferences, reinstalling Photoshop, updating graphics drivers, etc. on the Windows 11 machine, but no change. Anyone else having this problem?