I found what I think is a very minor UI bug in the lastest Diplomacy release -
When playing as TEC, I noticed in the Research GUI, Diplomacy section, that the item I'm currently researching does not "glow" as it does in the other menus when I'm researching other techs in other categories.
Just now testing it, it appears to be the same issue for the Advent's "Understanding" tech items, as well as the Vasari's "Manipulation" tech items as they are being researched.
The "progress bar" on top of all these tech items appears to be working normally.