Lifestones are always enchanted in lab. no way to turn that off.
This 2nd bug only occurs right after a reload, playing any game seems to prevent it:
If you input an invalid unit into the editor, and then click "Exit" quickly the lab menu will not disappear when you go to the title screen, allowing you to press exit or reset anywhere.
lifestone enchanting problem should be resolved now,
the other one I'm still not sure, but thanks for reporting it.