ALL of the recipes that used concrete mix--except for concrete itself--are now reset back to using concrete.

Working fine for me. Can you post your list of mods?

"base"
"elevated-rails"
"quality"
"space-age"
"0-things"
"2x2_Modular_Turrets"
"4k_planets"
"adamo-equipment"
"advanced-centrifuge"
"advanced_space_science"
"alien-biomes"
"alien-biomes-graphics"
"alien-biomes-tree-compat"
"AmmoGroup"
"armor-plating-redux"
"atan-crash-site"
"Auto-lamp"
"auto-splitter-block"
"auto-track-laying"
"AutoDeconstruct"
"autodrive"
"automatic-station-painter"
"automatic-underground-pipe-connectors"
"Automatic_Train_Painter"
"auto_manual_mode"
"ballistics"
"belt-reverser-space-age"
"beltbrush2"
"BeltThreadUpgrades"
"Belt_Glow"
"BetterAlertArrows"
"Better_Starmap_Background"
"bigger_slower_trains-M"
"blueprint-sandboxes"
"bobinserters"
"boblibrary"
"bobmodules"
"bobmodules-beacon-rebalance"
"bot-cargo-quality"
"BottleneckLite"
"buildingsonconcrete"
"bullet-trails"
"cargo-bay-inserters"
"cargo-drone"
"CheaperLowDensityStructure"
"CleanedConcrete"
"color-coded-pipe-planner"
"color-coded-pipes"
"combat-mechanics-overhaul"
"CombatRobotsOverhaul"
"ConfigUnderLengths"
"configurable-valves"
"consistent-lamps"
"ContrastSignals"
"crushing-industry"
"crushing-industry-tweaks"
"cupric-asteroids"
"CursorEnhancements"
"custom-bonus-gui"
"custom-quality-names"
"dart"
"data-utils"
"deadlock-beltboxes-loaders"
"dedicated-bot-charger"
"DemolisherMemoryExtension"
"dim_lamps"
"diurnal-dynamics"
"Diversitree"
"dynamic-rain"
"earlier-requester-chests"
"EditorExtensions"
"electric-tiles"
"electric_pole_free_light"
"Enduring-Embers"
"EnhancedCircuitNetworkVisibility"
"EpicArtillerySounds"
"even-distribution"
"even-pickier-dollies"
"ExpandedProductivityResearch"
"factorio-crash-site"
"factorissimo-2-notnotmelon"
"FactorySearch"
"fct-barreling-machine"
"fdsl"
"FFF339BeaconGraphics"
"Fill4Me"
"filter_assistant"
"fire-lights"
"Fireproof-Bots-2"
"flib"
"flow-config"
"FluidPatchOrganizer"
"folk-stopthat"
"force-inventory-insert"
"fulgora-extended"
"gas-furnace"
"GCKI"
"ghost-counter"
"ghost-mode"
"golinth-increase-furnace-slots"
"grid-planner"
"grouped-alerts"
"GUI_Unifyer"
"Gun_Turret_Alerts"
"HandCraftPriority"
"heat-visualizer"
"helmod"
"hide-elevated-rail-keybind"
"Honk"
"HotPipesFork"
"hub-extensions"
"hub-ship"
"InserterVisualizerLite"
"Inter-Platform-Logistics"
"inventory-repair"
"jetpack"
"K2-Roboports"
"k2-wind-turbine-zars-fork"
"kr-air-purifier-helper"
"Krastorio2Assets"
"KrastorioAirPurifier"
"kry_stdlib"
"Kux-CoreLib"
"Kux-Factorium"
"Kux-FNEI"
"Kux-GuiLib"
"Kux-SpeedButtons"
"lane-balancers"
"large-print-signals"
"larger_shortcut_icons"
"leave_the_lights_on"
"let-me-laser-down-asteroids"
"load-spreader"
"loader-utils"
"log4factorio"
"logistic-helper"
"LootingRemnants"
"lordodin_no_drains"
"manual-trains-at-temp-stops"
"ManualLogistics"
"map-tag-generator"
"mferrari_lib"
"Mineable-Cliffs-SpaceAge"
"minime"
"mining-patch-planner"
"MMMPIMAO"
"modular_turret_repeatables"
"ModuleInserterEx"
"MouseOverConstructionInstant"
"moves-ghost-rebuild-timeout-to-another-technology"
"multispoil"
"m_WhereIsMyBody"
"nco-LongStorageTanks"
"no-wall-repair"
"noradarsound"
"no_wall_alerts"
"offshore_pump_require_power"
"OilOutpostPlanner"
"PassiveRadar"
"Pi-C_lib"
"Picks-Inserter"
"pipe-visualization-overlay"
"Planet-Hopper"
"PlanetsLib"
"Platform-logistics"
"platforms-do-not-delete-items"
"pollution-combinator"
"pollution-scaling"
"pollution-tool"
"power-charger"
"power-grid-comb"
"PracticalToolbelt"
"pushbutton"
"qol_research"
"quick-bar-switcher"
"QuickbarTemplates"
"railloader2_fixed"
"RealisticTank"
"ribbon-cables"
"Robotic-Voice-Sample-For-Speaker"
"rocket-capacity-research"
"Rocket-Silo-Construction"
"RocketFuelSteel"
"Rocs-Improved-Platform-Drag"
"Sane-Concrete-2"
"SARS"
"sbSortedLogistics"
"scattergun_turret"
"SchallUncraft"
"SchallVirtualSignal"
"Shortcuts-ick"
"shortwave_fix_limited"
"show-max-underground-distance"
"sign-post"
"simple-fish-smoking"
"simplified-thrusters"
"SmallRobots"
"smooth_platform_walls"
"sniper-rifle-improved"
"some-autoresearch"
"sonaxaton-resource-map-markers"
"SpaceAgeUnnerfed"
"spaceship-steam"
"spaceship_expanded_cargo"
"speaker-signals-2"
"spider-launcher"
"squeak-through-2"
"StableFoundations"
"stack-inserter-vulcanus"
"stacked-scrap-results"
"Stacked_Mining"
"staggering_force"
"StatsGui"
"sushi-splitters"
"switch-button"
"Tapeline"
"TemporaryLogisticRequest"
"TFMG-platform-docking"
"tiny-assemblers"
"train-speed-limits"
"TrainAnnouncements"
"tree-healing"
"tungsten-munition"
"turret-range-research"
"TurretVisualizer"
"underground-heat-pipe"
"underground-pipe-pack"
"underground-pipe-pack-simple"
"underground-rework"
"UnitLocationHotkeys"
"upgradable-power-armor-mk3"
"vehicle-corpses"
"visible-planets"
"Water-Friendly-Walls"
"WideChests"
"WideChestsLogistic"
"wider_inventory"
"windowed-cameras"
"Workbench"
"WorkerRobotsBatteryResearch"
"yafla"
"zen-garden"
"Zooom"

Thank you! I'm not sure if there is another mod in your list (I didn't download all of them, just reasoned through it), and tiny-assemblers was likely the problem mod. With 0.5.9 + 0.5.10, I've added proper support for comparing ingredient limits on machines against the recipe's # of ingredients, and have also added explicit compatibility for a few mods.

Thank you! I'm not sure if there is another mod in your list (I didn't download all of them, just reasoned through it), and tiny-assemblers was likely the problem mod. With 0.5.9 + 0.5.10, I've added proper support for comparing ingredient limits on machines against the recipe's # of ingredients, and have also added explicit compatibility for a few mods.

Overall, it worked, but there was an odd bug. Out of all the assemblers that use concrete mix, the one making nuclear reactors had its recipe blanked and rotation reset. It worked fine when I added the recipe back in and rotated it properly.

(One of the reasons I LOVE Linux is that I generated that list by jumping into the mods folder and running this single command to grab a list of all enabled mods: cat mod-list.json | jq '.mods[] | select(.enabled == true) | .name' > modlist-20260307a.txt. So good!)

I did expect there would be some recipe changes which would affect some players, though clearing machines assigned the recipe is certainly odd.

And yes I switched recently and am loving the command line utils. I thought I'd find it terse and esoteric but I was actually pretty quick with adopting it.