Bug: Slack incoming Webhooks and Mattermost Webhooks No text specified error

[koroglumert]

Describe the bug
When using "Send Message to Channel" component with a working mattermost webhook, "No text specified" error is received.
A forum about this issue. Bu geliştirme ile
https://forum.mattermost.com/t/solved-webhooks-no-text-specified-details-error/448

To Reproduce
Steps to reproduce the behavior:

1. Select Send Message to Channel
2. Use Mattermost webhook

Expected behavior
To be able to send mattermost messages with Slack component.

Screenshots
Workflow and Send Message to Channel component inside

Run & Logs -> Error

Desktop (please complete the following information):

OS: MACOS 14.0
Browser: chrome
Version release, after Commits on Jan 12, 2024
Deployment Type
Is this issue on my server?

Additional context
Add any other context about the problem here.

[odiloRugamba]

with mattermost i have been able to do it by providing text as an object, like this.

{
"text": "message"
}

[koroglumert]

The same error persists :((