Did you look in the eggs to see how much development you got so you couild maybe figure out what was going on? This might help.
Mississippi State Incubation Troubleshooting
http://www.poultry.msstate.edu/extension/pdf/troubleshooting_incubation.pdf
No, I have not had your luck. I had one hatch earlier this year where I only got 10 out of 30 to hatch and two of those died. Those were eggs I picked up locally. 17 of those never even started to develop. I think I shook them driving home over some pretty bumpy roads, but I don't know for sure. The lady I got them from said her next hatch hatch was 100%. Of the 8 I got to live, 6 were pullets, which is what I wanted from that hatch but yeah, I was still bummed.
The next hatch with my own eggs was around 80%. A snake got one in the brooder, but out of the 16 that made it, 11 were roosters. As far as I'm concerned that was great because that was a meat hatch. All those will wind up eaten.
Then I had a broody that hatched 11 out of 11 of my own eggs during the heat of the summer. I haven't bothered to sex them yet. Again, a meat hatch.
So I had all kinds of luck, good and bad.
If yours are that consistently bad, something is going on. With my bad hatch, it involved driving home over rough roads with strange eggs. I have no idea what is different in your former good hatches and this year. If the eggs are not developing at all, is there something different in how you are handling them or storing them before incubation? Do you have a new rooster that is not fertile?
If they are developing then quitting, it could be the eggs or something may have got out of adjustment with the incubator.
As far as them all being roosters, welll I once got 7 pullets out of 7 straight run from a hatchery. I wanted a few of those to be roosters. Sometimes when you have bad luck it just gets worse.
Something is different for your hatches if you are that consistent, I just don't know what it is from here. Good luck in figuring it out. It's not always easy and a lot of the time you are never sure exactly what happened.