Failed to load mods: science-tab/data-final-fixes.lua:4: attempt to index field 'maraxsis-deepsea-research' (a nil value)
stack traceback:
science-tab/data-final-fixes.lua:4: in main chunk

Mods to be disabled:
• science-tab (1.3.0)

i have other mods installed as well, if you would like the whole list let me know.

It shows 1.3 because 1.4 failed, so i tried to roll back and test older version, and it still did not work.

Maraxsis did not change, I think you are using another mod that messes with science groups and that is difficult to not possible to deal with.
Give me the list, I'll try to see what it could be.

https://github.com/notnotmelon/maraxsis/blob/main/prototypes/recipe/deepsea-research.lua#L5-L10

You can join the server to synce all mods "PigStyle Modded 24/7"
or alternatively heres all the mods:

  "name": "base",
  "name": "elevated-rails",
  "name": "quality",
  "name": "space-age",
  "name": "aai-containers",
  "name": "aai-loaders",
  "name": "aai-signal-transmission",
  "name": "aai-stacking",
  "name": "Accumulator-V2",
  "name": "Age-of-Production",
  "name": "Age-of-Production-Graphics",
  "name": "alien-biomes-graphics",
  "name": "alternative-beacons",
  "name": "ArmouredBiters",
  "name": "astroponics",
  "name": "AtomicRobotsFix2Boost",
  "name": "auto-barrel",
  "name": "BarrelFluidIcons",
  "name": "Better_Starmap_Background",
  "name": "bioprocessing-tab",
  "name": "bobinserters",
  "name": "BottleneckLite",
  "name": "bzcarbon",
  "name": "bzsilicon",
  "name": "calculator-ui",
  "name": "cargo-bay-inserters",
  "name": "celestial-weather",
  "name": "cerys-lunaponics",
  "name": "Cerys-Moon-of-Fulgora",
  "name": "cf-lib",
  "name": "change-recipe-quality-without-re-selecting-recipe",
  "name": "Cold_biters",
  "name": "combat-mechanics-overhaul",
  "name": "common-prototypes",
  "name": "common-prototypes-graphics",
  "name": "corrundum",
  "name": "crushing-industry",
  "name": "elevated-pipes",
  "name": "enhanced-shadows",
  "name": "est-tiny-storage-tank",
  "name": "Exteros-QoL-System",
  "name": "factoryplanner",
  "name": "FactorySearch",
  "name": "fdsl",
  "name": "Flare Stack",
  "name": "flib",
  "name": "FluidMustFlow",
  "name": "FrozenFood",
  "name": "FusionPoweredRobots",
  "name": "Gleba-Science-Needs-Nutrients",
  "name": "gleba-water-cane",
  "name": "Igrys",
  "name": "informatron",
  "name": "jetpack",
  "name": "K2_spaced_out_extended_endgame",
  "name": "Krastorio2-spaced-out",
  "name": "Krastorio2Assets",
  "name": "ks2so-lignumis-compatibility",
  "name": "lex-aircraft",
  "name": "lignumis",
  "name": "lignumis-assets",
  "name": "long_stack_inserter",
  "name": "machine-upgrades",
  "name": "maraxsis",
  "name": "metal-and-stars",
  "name": "metal-and-stars-graphics",
  "name": "metal-and-stars-graphics-2",
  "name": "mf-buildings",
  "name": "mf-buildings-graphics-1",
  "name": "mf-core",
  "name": "mf-logistics",
  "name": "mf-logistics-graphics-1",
  "name": "minimalist-rails",
  "name": "molten-tungsten",
  "name": "more-casting",
  "name": "more-descriptions",
  "name": "Moshine",
  "name": "Moshine-assets",
  "name": "multispoil",
  "name": "muluna-graphics",
  "name": "muluna-utility-constants",
  "name": "new-diagonal-inserter",
  "name": "nulls-k2so-tweaks",
  "name": "Paracelsin",
  "name": "Paracelsin-Graphics",
  "name": "PersonalTeslaDefenseEquipment",
  "name": "planet-muluna",
  "name": "planetaris-unbounded",
  "name": "PlanetsLib",
  "name": "PlanetsLibTiers",
  "name": "pollution-as-surface-property",
  "name": "quality-upgrade-planner",
  "name": "quality_glassware",
  "name": "RateCalculator",
  "name": "Redrawn-Space-Connections",
  "name": "Robocharger-Updated",
  "name": "RocketCargoInsertion",
  "name": "Rocs-Hardcore-Aquilo",
  "name": "Rocs-Hardcore-Delayed-Tech-Tree",
  "name": "Rocs-Hardcore-Gleba",
  "name": "Rocs-Hardcore-Probabilistic-Farming",
  "name": "RPG",
  "name": "rubia",
  "name": "rubia-assets",
  "name": "se-space-trains",
  "name": "Shortcuts-ick",
  "name": "show-max-underground-distance",
  "name": "skewer_shattered_planet",
  "name": "skewer_shattered_planet_assets",
  "name": "snouz-big-accumulator",
  "name": "snouz-big-solar-panel",
  "name": "snouz_better_substation",
  "name": "SolarMatrix",
  "name": "space-exploration-graphics",
  "name": "space-exploration-graphics-4",
  "name": "SpidertronEnhancements",
  "name": "SpidertronPatrols",
  "name": "squeak-through-2",
  "name": "tile-upgrade-planner-muluna",
  "name": "visible-planets",
  "name": "vulcanus-sulfuric-bacteria",
  "name": "Wood-Walls",

It is the maraxsis+k2so compat layer. That changes the names of things that I need to affect.

Fixed, also added a support for a few more mods for you. You absolutely needed this mod.

Also thank you for showing me that the lab re-grouping also does what it intends to do, and also makes sense.

haha, yea we do. adding back to server now, ill let you know if anything goes wonky

Resurrecting, because got a new issue (just updated Maraxis and added it to my game).

Failed to load mods: science-tab/compat/maraxsis.lua:9: attempt to index field 'maraxsis-fill-research-vessel' (a nil value)
stack traceback:
science-tab/compat/maraxsis.lua:9: in main chunk
[C]: in function 'require'
science-tab/data-final-fixes.lua:9: in main chunk

Running in 2.1, btw

Checking now, and also locking this because it is not the same bug for me.