Mag hunter I agree with bean, yotes may have not been in the area at that time. I would not give up on it just yet, but a tid bit of info.
I did read somewhere that companys that provide downloads for E callers are switching to foxpro and will not down load to the icotech.
Im sure there are still plenty of places you could find that will down load their calls.
Good luck and stay at it.

As a reminder that yotes mating season is coming up, so be ready to switch up.
also as the late season is here the yotes sometimes take a little longer to show up, but its nice when like your recent hunt they come in quick. They are hungry.