mee too! Manychat email me: 

We are sorry for what happened; we would like to be able to give you an approximate date or an immediate solution, but since it is an error on Meta's part, we do not have access to this process, and we could only wait for IG/Meta to solve this error.

Hey there! Have you tried shortening your message? Oftentimes, it’s a Meta issue with the length of the message (how many characters per message).

Nope that doesnt work. Have you tried fixing your bot?

yesterday i created a new automation and same issue. half is missing.

when i shortening my text its the same. then more is missing and its cut during my sentence

Hi all! I have the same issue. Anyone has come up with a solution?

It might be a very stupid question, but is there a live support we can reac out? I have been trying find it, but it seems that it does not exist. 

Same here - only a a couple lines and button links. And it has the little arrow reply but not my full message. Started a couple days ago for me. Looking on here for a solution but can’t find anything so far. 

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Anyone found a solution yet?? This is so frustrating :(

It started 3 days ago for me.  I have deleted and created new automations.  Tried shortening, tried everything but it just shows the top line. UGH!!