Forum:Money Challenges

Alright, i am on my 61 siren, running through my completed challenges. I come across "Pocket Change, Money. It buys Happiness, The Rich get Richer, and How much for the Planet?" I have done a multitude of armory runs and sold a crapload of things. It says my money earned is "-2,032,601,409/9,999,999" It actually undid the completed challenges. (By the way this is on a PC.) My 'negative' amount earned is over two BILLION dollars, and its NEGATIVE. Has anyone else experienced something similar?