Game crashing before main menu after downgrade to 1.6.640

Skyrim AE - NEW Patch BREAKS Mods, SKSE64 Issues, VITAL Fixes!

... After the Patch 1:50 - Unofficial Skyrim Special Edition Downgrade Patcher 2:37 - Unofficial Skyrim Downloader 3:21 - What Version to Downgrade ...

HoI 4 - The game crashes on launch - Paradox Interactive Forums

Do you have mods enabled? No Description After starting the game it crashes just before the end of loading. Steps to Reproduce Upload Attachment