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How to fix Hearthfire and Dawnguard crashes in Creation Kit.
sLanguage=ENGLISH
bAllowMultipleMasterLoads=1
bAllowMultipleMasterFiles=1 (not covered in video but might be needed, this parenthesis is obviously excluded)
SArchiveList=Skyrim - Textures.bsa, Skyrim - Meshes.bsa, Skyrim - Animations.bsa, Skyrim - Voices.bsa, Skyrim - Interface.bsa, Skyrim - Misc.bsa, Skyrim - Sounds.bsa, Skyrim - VoicesExtra.bsa, Skyrim - Shaders.bsa, Update.bsa, Dawnguard.bsa, Hearthfires.bsa, Dragonborn.bsa
SResourceArchiveList=Skyrim - Textures.bsa, Skyrim - Meshes.bsa, Skyrim - Animations.bsa, Skyrim - Voices.bsa, Skyrim - Interface.bsa, Skyrim - Misc.bsa, Skyrim - Sounds.bsa, Skyrim - VoicesExtra.bsa, Update.bsa
SResourceArchiveList2=Skyrim - Shaders.bsa, Update.bsa, Dawnguard.bsa, HearthFires.bsa, Dragonborn.bsa
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How to use hearthfire and creation kit how to use dawnguard and creation kit is keeps crashing you don't have to read this but it's your choice how to fix error
Assert
File: C:\_Skyrim\Code\TESV\TES Shared\misc\BGSLocalizedString.cpp
Cannot load multiple master files