Understandably over the past several months the ZEN difficulty has increased and also the profitability has decreased.

But in the past 48 hours on Mining Pool Hub and Supernova ZEN / ZEC has been near ZERO in "accepted" shares.

Has something happened that I am not aware of causing this significant drop?

Has there been a change to the algo?

ASIC mining has almost stopped on both of these mining pools.... anyone have the similar experience?