I have no clue which one. If you use extras -> print all prefab xml data you will get this console output...
Age QSet(Old)
AllowTopSoilDecorations QSet(False, True)
AllowedBiomes QSet(snow, pine_forest, wasteland, forest, desert, plains)
AllowedTownships QSet(rural, town, wilderness, ciy, city, cave)
Condition QSet(New, Old, Normal)
CopyAirBlocks QSet(False, True)
DisallowedBiomes QSet(wasteland_hub)
DistantPOIYOffset QSet(0.0, -.1, -0.1, 0)
ExcludeDistantPOIMesh QSet(False, True, true)
MaxPerHub QSet(1)
RotationToFaceNorth QSet(2, 3, 1, 0)
SleeperVolumeGameStageAdjust QSet(350, 200, 450, 1000, 50, , 250, 400, medium, 100, hard, easy, 0)
SleeperVolumeGroup QSet(S_TestChamberDecoy_S, S_ZomUtilityWorker_S, S_ZomUtilityWorker_Med, S_LootRoom_XS, S_Default_XS, S_Badass_Med, S_GhostTown_Med, S_AbandonedHouse_1, S_ZomSoldier_L, S_BusinessMan_S, S_BusinessMan_L, S_BusinessMan_Med, S_LootRoom_L, S_LootRoom_Med, S_ZomUtilityWorker_L, S_Default_XL, S_ZomSoldier_S, S_FootballStadium_L, S_LootRoom_S, S_GhostTown_S, S_FootballStadium_Med, S_LootRoom_XL, S_Default_L, S_ZomSoldier_Med, S_Badass_XL, S_BikerBar_Med, S_Default_Med, S_Default_S, S_Badass_S, S_Badass_XS, SleeperSmall, S_SnowZombies_Med)
StaticSpawner.Class QSet(SpawnSmall, SpawnExtraSmall)
StaticSpawner.Size QSet(2, 20, 32)
StaticSpawner.Trigger QSet(160, 120)
TraderArea QSet(False, True)
TraderAreaProtect QSet(20, 0)
TraderAreaTeleportCenter QSet( 0, 1, 1, 2)
TraderAreaTeleportSize QSet(33, 33, 24, 39, 20, 26, 43, 36, 44, 48, 30, 36, 40, 41)
YOffset QSet(-8, -6, -4, -2, -11, -3, -1, -10, -5, -12, -24)
Zoning QSet(ResidentialOld, ResidentialNew, NoZone, DevOnly, BiomeOnly, industrial, any, Downtown, residentialnew, commercial, NavOnly, downtown, Industrial, Commercial)
...but it doesn't matter if it's not used in the dll.^^ That means there is (at least) one prefab with
<property name="DisallowedBiomes" value="wasteland_hub"/>
Time to remove this attribute.