The issue is caused because I used a very generic name for one of the data structures named FCell. If another library uses the same name, it won’t link while building. In C++ the right way to fix this would be to wrap this in a namespace, but that is not supported with USTRUCT and UCLASS due to engine constraints.
I’ll rename FCell to FGridCell in the next build and add a class redirect in the plugin config so it doesn’t break anything