Hola. Thank you for the mod pack, it's great. There may be a problem on my end, but the material catalog 1 requires fusion science pack 2.

As a prereq? That sounds like something's wrong. I just loaded up a game of ATOM with nothing else, and the only requirements are research server and mechanical facility.

If you hover over material catalog 1 in the tech tree and tell us what mods are listed, someone might be able to figure out what's doing it.

No, these packages are consumed during research. This technology requires 8 packs in total - rocket tech card, productivity tech card, fusion science pack 2, automation tech card, logistic tech card, chemical tech card, space science pack, production science pack. ATOM new clean installation.

I think I'm 15 days out of date, and wont update the game till I do some stuff - but I had no issues with this. I'm up to and have crafted some bespoke material pack 3. But have only fusion pack 1.

So if this is correct, it's a recent change in something.

Already got a PR in to fix this, it'll probably drop at the same time as the fixes for the new version of 248k.

Released and confirmed to be fixed.