Closing attributes UI from the entity list has some strange mouse blocking after. After closing two right clicks are required to open the context menu and any entity under the cursor is no longer selected upon opening. Further more the context menu entries aren't properly lit up on mouse over. Lastly I noticed that if instead of trying to open the context menu you go to place down a unit, the unit is immediately placed in the world.

Here's a video showcasing the bug: https://www.youtube.com/watch?v=AkHOjKS6Q-Y