Battlefield 6 Beta challenges and leveling up system not working

I’ve been playing all day to finish challenges and the repair 3000 vehicle health as an engineer hasnt progressed at all. Not only that but when I leveled up, it set me back a level and took away all of my earned xp. I wasted a lot of time (hours) verifying files and reinstalling the beta but found no solution. On top of that all the wasted time and problems caused me to miss out on a lot of leveling up for other rewards. Over all bummed out I didnt get to get all of the rewards I grinded for. I know its a beta but having challenges and rewards that are unobtainable really sucks. Total waste of time this weekend. Hope they extend the beta to give everyone an actual chance to earn the beta exclusive rewards :P