My latest grow (Durban Poison Auto) dried for 10 days and has been curing (in C-Vaults) for 16 days. I checked it last night by rolling a joint (actually 2) and it wouldn't stay lit and the ash was black. The RH is 60%. I did everything the same as my previous grows. Can I do anything to save the harvest, if so, what? Or should I just count it as a loss and make concentrates and edibles with it? Any ideas as to the cause of the black ash?