What it is is you have changed the way players with bags change their clubs or balls. It used to be a simple change and then click on 'Save' at the bottom right of the panel. Now, it shows 'Waiting' and you have to click 'Save' on the bag itself.
In addition, it seems that to start a multi-player game, you have to click on one of the courses before you get the 'type of game' menu. Not very clever really.