My Photoshop was last updated on 8/23/2023.
Operating System - Windows 10
Adobe Photoshop Version: 25.0.0 20230727.m.2257 47ac892 x64
I am using Real-time Refinement, with the black and white view.
I made my selection with select subject.
When I select on the brush to refine, (2nd brush down), I only get an arrow, not a brush.
Using that arrow, I get SPOTS rather than a smooth flow for the refine.
I have updated since the the theoretical fix date, but am still having the same issue.
It is not a problem in the non-beta version.