Rocket.chat Rasa integration : rocket.chat giving multiple times same response

[samir]

Took me hours to find out what was the problem, I put it here for the record.

Answer here:

Rasa / Rocketchat integration comms issue

Description I’ve successfully connected dockerised Rocketchat and Rasa instances, and can message the bot from RC, but it repeats the reply - Rocketchat appears to think the reply it’s getting is empty. Has anyone seen anything like this before? [cfsbot] {"level":40,"time":"2022-03-11T18:49:09.320Z","pid":9,"hostname":"58c1ef9d129f","name":"Integrations","section":"Outgoing WebHook","msg":"Result for the Integration CFSBot to http://bot_rasa:5005/webhooks/rocketchat/webhook is empty"} {"leve…