Augmented Reality for UE4

I am trying this plugin on my laptop that has a working integrated webcam but to no avail. Is there any kind of setting or parameters to define before trying to use it, in order to get the web cam feed in the editor or is it just my cam that is not compatible with the plugin? How can I know? I tried to do a step by step in the blueprint but the results were not really conclusive.
I am quite new to unreal and haven’t had much time to play with it unfortunately, so I apologize if it is a trivial question.
Thank for your work any way :wink: