Will look at this when getting mesh paint 2.0 finalized
Unexpected behaviour when painting skeletal meshes with small radius brush.
This does not occur with static meshes.
Confirmed in 4.25 MAIN @ CL 9730599
User provided showcase video: [Link Removed]
Results: 1. Cursor is to large/opaque and hides verts when painting small areas 2. Not all verts are paintable when brush radius is small
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-82197 in the post.