For people complaining about the balancing issues, one of the things to remember is that this is beta and the player base is still small. When you hit "fight" it will only match you with people also looking to fight that kind of battle at that moment. If you want "fairer" matches, be prepared to wait a long time.
Games that are difficult because they are random are not good games, they are signs that the developer doesn't understand how create a strategy based problem.
Hmmm, can you please try clearing your cache and doing a cntrl + shift + r hard refresh to see if that solves the issue? Thanks!