⚠️ New Vegas Mod Troubleshooting

Missing xNVSE, wrong exe, or a load-order conflict. Verify xNVSE files are in the game root (not Data). Disable mods one by one to isolate. Run LOOT to check missing masters.

You launched FalloutNV.exe instead of nvse_loader.exe. Always launch through the NVSE loader, or configure your mod manager to use it.

Install New Vegas Tick Fix (NVTF). Set iPresentInterval=0 in Fallout.ini and cap FPS to 60 in NVTF to avoid physics bugs.

You didn't run the 4GB Patcher. Apply FNV 4GB Patcher to FalloutNV.exe — the 32-bit game needs it for modded play.

Missing mesh/texture files — usually a bad install or wrong mod version. Reinstall the correct version.

Known engine bug on NVIDIA. In Fallout.ini set bUseWaterDisplacements=0, or use a water-fix mod.

FNV has a hard limit of ~139 active plugins (255 total, minus base game + DLC). ESL-flag plugins with xEdit, merge small mods, or cut down.

Install NVAC (New Vegas Anti Crash). Avoid heavy script spam, and check LOOT for conflicts.

FNV save bloat is real. Avoid quest mod churn, clean with Save Cleaner, and don't remove scripted mods mid-run.

A mod was removed or changed. Load an earlier save, or use a clean-save procedure before uninstalling scripted mods.

ENB/driver mismatch on the old engine. Update ENB binary, or remove ENB and use Realistic Wasteland Lighting instead.

Missing animation framework or xNVSE plugin. Check the mod's requirements and re-run any animation tools.

Old engine audio bug. Install an audio fix mod, or set your audio device to 44100Hz / disable surround.

Missing UIO. Install User Interface Organizer and reinstall the HUD mod.

A mod conflicts in that cell. Inspect with FNVEdit, disable area-specific mods, or install a stability pack.

UAC blocks mod writes. Move FNV to C:\Games (Steam: move the library) or run your mod manager as admin.

FNV saves to Documents\My Games\FalloutNV. Disable OneDrive sync for Documents.

Disable fullscreen optimizations on FalloutNV.exe properties.

Add your FNV folder as an exclusion in Windows Security.

Set bUseWaterDisplacements=0 in Fallout.ini, or install the water-fix mod.

ENB/driver mismatch on the old engine. Update ENB or remove it.

NVTF + cap FPS to 60. Disable V-Sync in-game and use driver-level sync.

The Strip is CPU-bound. Lower draw distance, use Poco Bueno textures, and disable ENB there.

Use Realistic Wasteland Lighting + a texture pack instead of ENB on AMD GPUs.

CPU-bound regardless of GPU. Lower draw distance + Poco Bueno textures.

Clean-install the driver with DDU.