I've created a Facebook messenger bot that works great. The problem is in a new conversation the first time a user selects the bot to open a chat, they are stuck on an endless loading screen. I've tried adding and removing greeting messages via the api makes no difference. Any tips on debugging this would be helpful.
I found an open bug on facebook's side that's causing this bug. https://developers.facebook.com/bugs/1863035593948757/
The work around is to use the search to initiate a conversation not compose.