Soo, basically natural-jellynut-soil generation is broken.
I spent hours trying tens of seeds running at 8x the speed.
Almost none of the seeds generate natural-jellynut-soil. The single one that I found, only did it at specific moisture scale, like 17% scale.

Take a look at these screenshots:
https://ibb.co/Z6P2CpD2
https://ibb.co/nq4jVJrL

PS. I don't have any mods. Only speed control. 2.0.34 build

Gleba territory is generated where there is moisture. Do you have the same problem if you set moisture at higher percentage than 17%?

Thank for your response.
Well, as I said I don't get any natural-jellynut-soil EXCEPT at this particular moisture. So, no, setting it higher or leaving it the default, I don't get them.

Can you give me your map seeds? Then i can take a look

I tried more than 10 with different combination of settings.
Here is the last one: 218937459

Here is a string that I just tested.

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<<<

Here is a string that I just tested.

">>>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<<<"

Thanks :) Currently i am working on my other mods and i will take a look once that is done