No response received in slack, from custom actions

Rasa Version - 2.8.16

Context: I’m creating a bot that talks to users in slack, fetches information about the user from the backend, and replies according to it. I’m running a form whose questions are fetched from my backend and then are to be asked to the user.

Issue: I’m getting a slack time-out error, perhaps because of execution time in custom actions. And to handle it I’m trying to send a dispatcher_message from actions before the form begins. But even this message is not received in slack.

I checked similar issues raised by other developers as well.

@erohmensing can you take a look, please? Also let me know if anything else is needed.

Thanks