Dynamically created render targets do not work as expected when packaged for windows. If it is replaced with a static render target, it works fine.
Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5531554, 4.23 CL# 5586650
The plane will be showing the default diffuse texture
The render target would work when using the Create Dynamic Material Instance node
if you create the render target after Begin Play instead of the construction script, it works.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-72038 in the post.