Fortunately, a fix is available that addresses many of the common issues associated with the Fourplay F4SE plugin. The fix involves updating the plugin to the latest version, ensuring that all required dependencies are installed, and tweaking game settings to optimize performance.
Once you have a better idea of the issue, you can proceed with the appropriate fix.
If you are playing on the Fallout 4 Next-Gen update (version 1.10.980 or later), the original FourPlay plugin is completely broken.
This fix resolves 70% of "Plugin not loaded" issues on Windows 10/11.
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