How to fix "SourceFactory is not defined" error

Hi everyone!
I’m trying make a packaged application that has to include a livelink plugin which is a Project Plugin. I’ve changed the .uproject to include the plugin within the “Plugins” list, as well as adding its folder path to the project advanced setting Packaging->Additional Assets Directory To Cook (following some forum thread suggesting this), but I keep getting the error at runtime that the required factory is not defined. What I’m trying to accomplish is simply adding this custom source to the list whenever the application starts (it’s a Proof Of Concept Demo), and although in the log there’s a line that states that the PluginManager successfully mounted the plugin, the following error says otherwise:

LogLiveLink: Warning: Create Source Failure: The factory is not defined.
LogLiveLink: Error: Could not apply ‘LiveLinkPreset /Game/OVLLPreset.OVLLPreset’

Can somebody help on this?
Thanks!
Willy