Thanks for letting us know about this! The crops do have a life span mechanic which is being triggered too fast since we have the fast clock at the moment. We're going to tweak this or maybe disable it all together until we have a proper day length in place. We figured that it would make sense for the crops to die out if left untended for too long but its kind of biting us in the butt lol.
Thanks again for the feedback and we'll be tackling it ASAP.