HELP needed

I cant seem to get past the download map part in mp

This happened after the recent patch. When I try to join a game, it required me to download map( is it normal to do this again after every patch?). When it reaches somewhere 96%, the download indicator dissapears and im left with just nothing to join as the join game becomes unclickable.

I also want to note that everytime i join mp, after a while it states that "there was a problem downloading the content. Please try again later". Well, that happened in the last patch but i still managed to only dwnld my prefered blizzard maps individually.

Any suggestions? I had none of these probs before the latest patch