Hi.
Ive used your mod now for quite some time and i love it. But now im my newest modpack isnt it working anymore. could you take a look at it and maybe fix it?
Save for modpack: https://we.tl/t-hMa5tQuWkL

ok.. ive found the mod, that causes this bug. Its ATO (https://mods.factorio.com/mod/all-the-overhaul-modpack?from=search)
I will make a post over on his side as well, just to make sure, that we find out which mod is the actual problem or has to fix this problem^^'

here is the link over to the other post i made: https://mods.factorio.com/mod/all-the-overhaul-modpack/discussion/699cfcaa5a69510135e0c23b

Try now, I've updated the mod to be a bit more robust and defensive when updating the data.raw tables with the productivity changes.