Common Bugs & Fixes

SKSE or Address Library Version Mismatch

Incorrect Installation of SSE Engine Fixes

There are many common bugs that may be encountered throughout your modding experience. We have listed a few of them below and how you can fix them.

SKSE or Address Library Version Mismatch

Depending on your game version and whether or not you have downgraded, you have to get different versions of SKSE and Address Library.

See Checking Your Version to check your game version number and install them accordingly. Also check Anniversary Edition section's last few lines to differentiate between the AE upgrade and update. This page refers to the update unless stated otherwise.

If you have a wrong version of SKSE the error above or similar may show up. You have to install the correct version of SKSE to fix it.

SKSE 2.0.20 is for Version 1.5.97
SKSE 2.2.3 is for Version 1.6.640
SKSE 2.2.6 is for Version 1.6.1170

If you have a wrong version of Address Library, the error on the left may show up. Again, you have to install the correct version for your game to fix this.

Anniversary Edition Address Library is for 1.6.640 & 1.6.1170
Special Edition Address Library is for 1.5.97

Incorrect Installation of SSE Engine Fixes

SSE Engine Fixes is an essential mod. You may face errors during installation. If you forget to install "Part 2" of engine fixes, which is to be installed manually into the game directory, this will show up (image on right):

If every time you launch the game, it crashes without prompt and all of your plugins are disabled (see "Plugins" tab in your mod manager), you are using an outdated version of Engine Fixes. Get the latest version and re-enable your mods to fix this issue.

Simply install "Part 2" into your game folder to fix this error.

It contains:
📄 d3dx9_42.dll

📄 tbb.dll

📄 tbbmalloc.dll

These files should be in the same folder as "SkyrimSE.exe"

Crash When Launching The Game

There are only a few causes for this:

Missing required mods. Check top right 🔔 icon for vortex or ⚠ icon for mod organizer 2. See if you are missing required mods. This will always result in a crash.
SKSE version mismatch. You have an outdated SKSE mod. Check your crash log's "SKSE Plugins" section for a list, and troubleshoot from there onward.
Downgraded version. Due to how there were major changes in plugin formats in the recent updates, if you downgrade to any version older than 1.6.1130, you need Backport Extended ESL Support (BEES)
Specific mod issue. In this case, a mod is causing crashes. It might be outdated, conflicting, or intentional. See Troubleshooting for crash information.

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