I’m a little confused with your post. The title is color dodge blend, yet inside of the post you only use color burn
I tried recreating your setup
original image:
Image with color burn applied
shader in unreal demonstrating the color burn effect (same grey values as in Photoshop)
They pretty much line up.
If you want color dodge that’s a different story all together.
Color dodge uses a different node
Base and blend nodes are switched around for some reason. A little inconsistency.
A whole thread on color dodge in unreal