When you use the button Set Style node to set the style, it ignores the following style members:
Normal Padding
Pressed Padding
Pressed Sound
Hovered Sound
The only styles that are set are the Normal, Pressed, Hovered and Disabled.
Hello ,
This appears to be a known issue. I have provided a link below to the public tracker. Please feel free to use the link below for future updates.
link: Unreal Engine Issues and Bug Tracker (UE-23051)
Make it a great day