When Mina is ulting, if an ally uses a rescue beam on her, Mina will be unable to move at all (in any direction). Pulling Mina works correctly at this point.
rescue beam seems to essentially work as a slowing hex for your own team. it stops silver from being able to use boot kick (2). didn't realize i was griefing my team by just having the option to pull them. definitely sticking with healing nova til this is fixed.