Hey @TheShown if you’ve having trouble you can always shoot us an email, our contact information is on the orders page of our website. While I’m not 100% sure of the differences, I’ve had many issues where plugins compile just fine as engine plugins, but don’t as game plugins. It’s rather weird, whatever they have going on with the includes, and I still don’t know what the actual differences are as I’ve never taken the time to investigate it, but I wouldn’t recommend trying to compile the plugin at the project level. Instead you should be placing the plugin in your /Engine/Plugins/Marketplace folder and compiling the engine that way. If you’re not compiling the engine from source via GitHub and are using the default engine in your Epic Games Launcher, then you need to follow the instructions at the end of the documentation that explain how to compile the plugin when not compiling the engine from source.