As we prepare to release the Content Library and UEFN to the public, we’ll roll out an updated version of the Content Library plugin. Please be aware this new version has known issues with packs. Any packs that are purchased in the plugin will not be usable until March 22nd.
If you purchase a pack, you’d still own it and be able to use/download it from the Unreal Marketplace (and you will be able to migrate them from UE to UEFN using this guide), but it will not work directly from the Content Library plugin in UEFN.
We are still in the early stages of alpha of the content library, so bear with us. We truly appreciate your patience.