I've had attendees in 3 different trainings whose hand raised automatically. Even after they lowered it or I lowered it, it would raise automatically. They were logged in using chrome and a laptop, not a tablet or phone. This made it extremely difficult to track other attendees when they raised their hands since the "raised hand" notification stayed on continuously.
@specialk97 I'm not aware of this being a problem for GoToTraining attendees. Was this during a breakout session you created and assigned the participants to?
OK, in that case we'd probably want to examine the affected Attendee's device to gather log files pertaining to that training period.