Thanks for the report, and the nice words. Glad you're enjoying the mod.
The new version 2.1.0 now has a setting (default enabled) to fix looped recipes among other things, so that both seeds as well as bacteria cultivation should now always have a positive (or at least non-negative, like seeds in vanilla) net production. In the process of this, realized that the probability calculations had a pretty major bug that led to massively increased probabilities in some cases, meaning by fixing this you may generally see different values for probabilities with the new patch and you may also want to check some parts of your factory, like kovarex processing.
You're brave for playing Space Age with this mod, haven't done that yet personally but if you encounter any other issues let me know and i'll do my best to fix them. And of course also let me know if this update didn't actually fix this issue for you, i did do some testing and it looked good there but things can always slip through the cracks with a mod that does as much as this one.