I had a poor year with oca's last year too, just couldn't get them out of the ground so most became rodent fodder!
Those ones were unique to the Seed Circle group, so sadly unless someone has had success with them and saved a few to plant, then they are toast!
I've a lot more lines to trial this year, just the 3 mentioned above all had good production, each over 2 1/4 lb in the year I grew them from seed.