Package Builds of game don't work with plugin?

So I’ve made a quick test of a game using networking and adding some Json Support using Json Query Plugin. My main issue is that when I ship the build the notifications and any sign of the game itself working doesn’t seem to be working.

I’ve set it up so it sends a login request, gets the Json reponse and either sends a notification your join and closes the UI or the notification of invalid and resets the field. These both work in Editor, I’ve attempted add to make my only BP project a C++ hybrid project with code and that also doesn’t fix it. Hoping someone can help me out as this is a pretty major bug.

Edit; Using version 4.4 from launcher.

(Still as of 4.5) If your plugin depends on a dll or other file, it needs to be placed in the packaged directory (in the same hierarchy as the project folder) after packaging to work. Otherwise your BP project needs code (file-add code) and compiled once so the engine can detect the plugin and include it in the packaging process.