If my phone has been untouched for, lets just say 1 hour, and she sends me a message, I get a notification. However, if I reply to her, and a few mins later she messages me back, I get no notifications. No sound, no notification bar pop up, nothing.
This is super frustrating, but it acts almost like a feature that has been implemented on purpose. I want it to pester me, and I want to know the moment I have a message. Otherwise, I am constantly unlocking my phone and checking out the hangouts screen.
Running Jasmine now, but this was a problem with stock as well.