Fallout NV Crash on start with MO

[Spitfyre13]

I can start vanilla through MO with NVSE, FalloutNVLauncher, FalloutNV.exe, and FNV4GB and it works entirely as expected. However, when I start New Vegas with any mods installed at all, even if the esm's and esp's are not actually activated, the game crashes immediately. I've completely reinstalled MO, reinstalled FONV, and followed STEP and all I'm currently trying to run is Darnified UI.

[GrantSP]

Welcome to STEP.

Since you say the game starts without issue through MO using the various extenders: NVSE, FNV4GB, etc. but fails on a modded game, can I suggest you ask over in the F&L in NV thread. It seems you have broken your install of some mods somehow and that is causing the issue, not MO.