Hi! Not sure what you mean with “2D”. The plugin supports textures and videos using equirectangular projections, in monoscopic and stereoscopic formats. You can find all the needed informations about the supported formats in our documentation.
Video playback is not directly managed by the plugin, but relies on the UE4 Media Player. Looping included. So if you have issues with the UE4 Media Framework, this plugin will not help on this.