Meta has resolved the bug on their end. Please let us know if you run into this issue agian
We are receiving reports that some users are seeing automated replies with JSON code. This is a Meta issue and is not related to Re:amaze.
Meta status page for Instagram DMs shows an Outage - https://metastatus.com/ig-messenger
There are also a few bug reports filed by other developers that are seeing this - https://developers.facebook.com/community/threads/607930555104827/
We are monitoring for any updates from Meta.