Not really a bug, but it's been a bit of a pain for me.
In the new research screen, when you assign a project, both the tech and the project leader stay in the selection windows. can make it a little confusing if you forget what your researching and who with. When you queue the projects they disappear out of the selection window as they used to, so I'm hoping it will be an easy fix to remove them from the selection window for an actual active project.
Matt