Random Iphone User wont appear in my Group Texting on LG G2

[Laurdogg]

I have the LG G2 & I downloaded the GO SMS Pro app & the Textra App to compare with group texting. I finally got group texting to work with all my Iphone friends, where i am finally not getting their texts back individually, but in a single thread. HOWEVER, it seems one person in particular is getting my texts in the group thread, but i am not getting hers. We can text normally but once its in the group text i cant see what she is saying. And since she has an Iphone we made sure my contact went from Iphone to regular Mobile we both restarted our phones and she even deleted the thread and retried it, but still nothing. Anyone know how this can be fixed?! i group text everyday all day, and this is so nerve racking!