Had this twice now, once as a Player (Deadlands) and once as a GM (Savage Worlds core), however I can't recreate it. When the GM shares something, (in Deadlands it was the combat tracker in my SW game it was a story pane) and minimises it, it resizes funny, for some/all Players. In the Deadlands game the shared tracker was the correct height but the width was very narrow (for me), in my SW game the Player reported the story pane was "tiny". In both cases they couldn't be resized. In the Deadlands game I think more than one person noticed it. In my game I was sharing different story panes with each player and only one had an issue ( I minimised them all).