WistfulDread

And solution fixed. As usual, forum digging found: https://forums.nexusmods.com/index.php?/topic/3989675-settlements-no-floor-collision-in-any-settlement/ Solution was removing ( bUseCombinedObjects=0 ) from my ini. I recall one of the mods recommended adding that line. Guess that mod's getting the boot.

Okay, so after uninstalling ALL mods and verifying the game... problem is still there. Either it's a corruption on the save or a core game bug that I keep getting.

I've had this problem for a long while now, and still haven't seen any confirmation on what mod causes it. Simply put, a lot of my settlements are missing collision for what I'm using in build mode, but keep it for everything else (PC, NPCs, bullets). Specifically, Taffington Boathouse(but only bottom floor of the house), the Mechanist's Lair (only the concrete floors). A few other sites, as well, but these 2 are the most agressive cases. Used to think it was a Spring Cleaning thing, because the issue appeared in its discussion thread, but I haven't even installed that mod since my recent reformat. My only suspicion is maybe Homemaker is responsible, but I've never seen any mention of this bug on its forum. Load Order: 0 0 Fallout4.esm 1 1 DLCRobot.esm 2 2 DLCworkshop01.esm 3 3 CROSS_CosmeticFramework.esm 4 4 Homemaker.esm 5 5 ArmorKeywords.esm 6 6 Unofficial Fallout 4 Patch.esp 7 7 MinutemenQuestRelief.esp 8 8 DeadBodyCollision.esp 9 9 battlefork_collectionbeacon.esp 10 a Move (Get Out the Way).esp 11 b LongerPowerLinesInf.esp 12 c Crafting Workbench.esp 13 d Crafting Workbenches - Ammo.esp 14 e Crafting Workbenches - Automatron DLC.esp 15 f Crafting Workbenches - Pre War and Manufactured.esp 16 10 BTInteriors_Project.esp 17 11 DLCFixes.esp 18 12 Armorsmith Extended.esp 19 13 Armorsmith Automatron.esp 20 14 DarkerNights.esp 21 15 TrueStormsFO4.esp 22 16 TrueStormsFO4-ClimateSettings.esp 23 17 TrueStormsFO4-Performance-Fog.esp 24 18 DarkerNightsDetection.esp 25 19 DarkerNights-TrueStorms.esp 26 1a Realistic Death Physics.esp 27 1b LegendaryModification.esp 28 1c LegendaryModificationMisc.esp 29 1d BetterSettlers.esp 30 1e BetterSettlersNoLollygagging.esp 31 1f Homemaker - Greenhouse and Bunker Disabler.esp 32 20 CROSS_Jetpack.esp 33 21 WBO.esp 34 22 WBO-Automatron.esp 35 23 CROSS_Cybernetics.esp 36 24 LegendaryRarity75.esp 37 25 LegendaryAllDifficulties5x.esp 38 26 CROSS_Cybernetics_NoRobotFootStepSounds.esp 39 27 Buildable_PAFrames.esp 40 28 AWKCRPatch-UFO4P.esp 41 29 Insignificant Object Remover.esp 42 2a SprintFix.esp Any help will be appreciated, as I'm exhausted my brainpower on this one.

Honestly, I'm not inherently against paying for mods. But I can never trust a mod not to break something I won't know about until I've reached a point where I need to start over. And that's why I never will. On the case of whether they deserve to get paid, modding always seemed to me like an Internship. You aren't going to get paid. It was about learning the trade, showing your talents, and getting your name out there. You either learn from it and find your way to a long-term career, or you burn out and leave it behind you. Plenty of talented modders even do both.