James, I'm so sorry for your loss. I really am. I recommend trying again in late spring. This is my third year using the cloner. My first attempts were dry runs using the 5gal bucket. I tried them in Summer and Fall. Each time the cuttings ....all the cuttings died. However, the system does work. It's my go to method now for cloning. I do tinker around with other methods. Here in the Southeast the weather fluctuates a lot. And figs grow very well but every 5, 7, or 10 years, we receive a sever freeze. The mount Etna types are hard to kill here and the same goes for a few others like Desert King. But in my clmate gnats are everywhere ! They can kill newly rooted cutting in no time which is why I have not potted up those inside my EZ cloner 64. All 64 cuttings rooted.
I do hydrate my cutting first before placing them in the cloner.....sometimes for a whole day in plain water. I also cut the bottom off, score it, add rooting gel with a brush, and then in the cloner. A do add the Hydrogen perixiode every couple of days but some times I forget even though I have a repeat event reminder on my phone. So, give it another try. For me, fig cuttings are ready to pot up in 17-20 days depending on the freshness of the cutting. And again the beauty of it all for me is, no gnats.
Cheers!