trying to attach the black screen snapshot
Thank you for the report!
When you click an enemy in combat, there should be this exact same interface, but it shouldn't have the black background behind it.
Currently when testing this on my end, the black background doesn't show, so I'll investigate why this might be happening.
I remember it always happened without my input, usually after an enemy turn. I will try to replicate it tonight. It's minor issue, you can click the red cross button to get back.