Just curious about this if you found a solution, I am having the same problem that the capital will not produce any pops via Organic assembly.

引用自 Jessye：

I appear to have found a bug, abyssal pops cannot be assembled in their homeworld planet as it says there's no pops to be assembled
I've tried with other pop types and they still grow

have you tried with the special building of the "Abyssal" the "Assembly Center"? Because Abyssal Species have a high negativ to the assembly rate and if you in negativ no pop will be assembled.