Contract window and other locations have a visual bug that may be RB related
low priority

Assuming fixed.

I am also having this issue
KSP Version 1.4.1.2009 x64
I only have Research Bodies installed.

So I did some more testing,
Looks to be an issue only with the Instructor_Wernher Prefab,
Switching the prefab to the "Strategy_ScienceGuy" Prefab makes it so the scene does not overlay on all other portraits.

Unfortunately I am unfamiliar with unity coding so this is about as far as I have gotten.