Widgets with a UI Material that uses Custom Stencil will not render meshes with a set stencil. This is working as expected in 4.19 CL# 4033788.
Found in 4.20 CL# 4369336, 4.21 CL# 4541578, and 4.22 CL# 4614594
This is a regression.
With the mesh behind the Widget it will not be rendered
The mesh would be rendered like the material next to it
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-67062 in the post.