Can you please open a ticket with that info?
Please ask to be handled by me.
It's not a bug.
If you were to switch from human to another lifeform, you wouldn't lose the human building levels. They will be remembered in case you were to ever switch back. The same goes for lifeform researches. At one point, you upgraded envoys to level 1 on this planet, and later switched to catalyser technology. The game still remembers you have envoys level 1 in case you were to switch back. In this case it would again display you as having catalyser technology level 16, despite having envoys level 1 active.
