I have "Stronger explosives 18" and "Research productivity 6" in my research queue. From what I am seeing in game, and from reading the code, it looks like these have equal priority (10) because they both have spoilable science. This results in "Research productivity" never being researched, even though it seems like it should have higher priority, because it uses both spoilable and late-game science.

According to the mod settings for "Prioritize late-game science", "If you enable both this and the option to prioritize spoilable sciences, the spoilable science priority will supersede this". Is there a way to do both at once?

Update: I've implemented this locally by changing the priority of spoilable science from 10 to 1,000,000, and changing getTechPriority to:

local function getTechPriority(tech)
    local priority = 0
    for _, sciPack in pairs(tech.research_unit_ingredients) do
        priority = priority + getSciencePriority(sciPack.name)
    end
    return priority
end

Sorry, forgot to reply to this. I posted a new version that has this change you suggested, and some other stuff to make the "to prioritize XYZ" notifications still work.