I have been using Mincecraft PE for 4 yeaars now. And I will continue to use it long after that. HOWEVER for some reason with the new minecraft PE update I cannot seem to be able to use the multiplayer somehow. Please help in any way. 

The problem is basically I create a world. I have everyone connected to LAN then all of a sudden once my world is created and my Multiplayer settings have already been establish; everything gets toggled off by the app itself somehow. It wont let me play multiplayer on the worlds i create despite having known how to do so for years and despite getting help my settings changed without my input. 

This however only affects my multiplayer settings. Everything else seems fine. I have tried everything. Please help. I want to show everyone my worlds.