photoshop HDR Pro 32 bit ghost removal creates patches

Hi guys

combining a landscape photo, 3 exposures (0, +1, -1), RAW, from LrC using PS HDR Pro, 32bit selected, toning in ACR. When activating the remove ghost effects, the blue sky looses it's smooth transition and gets patchy. otherwise no issue. The photos are from the same series, 1 second apart.

Attached a crop of the series, converted in BW. The issue is visible befor the BW conversion.

Known issue? How to deal with it?

Same photo series in LrC, it looks fine, including ghost removal (light, medium and heavy - no issues).

(Just not sure if the created DNG file is 32bit)

Latest PS (2023) and LrC apps.

Thanks, Juergen