My bad I've been a dumbass haha. I didn't realise the NSC mod had been updated so the two mods were conflicting. Should hopefully be fixed.

I mean it could be. Im talking about ship types from NSC3 like strike cruisers, carriers etc. Vanilla ships works fine but with your mod nsc3 ships types have one basic nsc reactor and i did find its happening cause you wrote specific ship types restrictions which i think overwrites something:
instead of
It removes that reactor you modified absolutely from strike cruiser template in my mods pack. Same is happening with the rest of NSC ship types. Could be someting other interfering with it in my mods list but with this simple change you can make it compatible with more mods i think? I have no idea about moding its just something i tried to fix myself for my mods pack.

Are you sure its my mod? I've only experienced this bug while using ACOT where I can only equip the "Dark Matter Dimensional Reactor" on some bio-ships

Doesnt work in the new update some ships have no reactors at all. You can fix it if you use: potential = {
ship_uses_"ship type"_reactors = yes
from = {
country_uses_bio_ships = no
}
}
instead of specific ship restriction

Should be fine anywhere but I've got mine loaded right after NSC3

Nice! Any advice where should I put this on the load order? (A - Z)