These dumps aren't specific to your alts but all the alts are down due to bitcoin going down. If you don't know than the recent drops in price have been due to the MT GOX trustee dumping large amounts of bitcoins on exchanges.
You are right this issue is the major problem in crypto fluctuation at the same time Japan and US regulation are affect the crypto market. So three problems are hit the same time it reflected in the total crypto platform. But it is not a bug issue it recover again so everyone should in this time.