Room temperature may not trigger the hatch, get them up in the high 70's, then you will know if you have a viable ooth.
Even refrigerated, last years harvests was in December 2017 to January 2018 will probably not hatch, and if they do, lower numbers are common. The next years hatch is the same time frame, I will put a notice in the classifieds when they arrive.
CHEERS!
Nick