Help regarding plants vs zombies garden warfare 2

Hi can you help me ? I know you say it saves automatically and it is saving what I collect or do etc but it’s not saving me at a checkpoint so when I come back in the game it takes me straight back to beginning. Am I doing something wrong? I’m trying to fight a boss but it’s taking me 2 hrs just to bloody get there and to a checkpoint but twice now I’ve had to leave game and when back had to bloody do it all again! I’m soooo frustrated!!!!!!!

please can you help me I’m new at this. 
thanks

roxanne

@shane_Godsell_18  You know the portal located in the plant or zombie base? The globe is very close to that and looks like the earth. Access that to save your game, and change some other settings, if you wish!