local multiplayer servers wont appear in the lists of worlds on wifi (IOS 9.2) mc pe version 0.13.1 alpha

Hey guys,

I was trying to play local after the update of 0.13.1 for minecraft pocket edition , I started the world on infinite and on old version. I started it up so my little sister could join , but it didnt appear on her list of worlds, so i tried it on her device and it didnt work either. So we cant play local on same wifi on same ios version . so the problem is that we cant join each others worlds because we cant see them!
I have a iphone 6 and my sister has a iphone 5S ios 9.2. Hope we will find a solution to this!

P.S version 0.13.1 is not listed as version this is about version 0.13.1