The Mattermost node won't fetch Team Name or ID

Questions
1

I’m trying to utilize the Mattermost nodes for some workflows, and I have created the credentials, once with a user token, and once with a bot token. When I attempt to use certain nodes like the “Create Channel” node, the “Team Name or ID” field says, "Error fetching options from Mattermost.

I have tried creating the credentials, ensuring that they are connecting correctly to the API. I have deleted them, and recreated them. I have logged in and out of my self-hosted n8n instance. Nothing seems to be working, other than doing everything manually through HTTP request nodes.

2025-03-07_23-20
2025-03-07_23-20385×555 22.5 KB

Any help with what might be happening would be amazing.

I am self-hosting n8n, and I am using the latest n8nio/n8n docker image

2

Could you provide the workflow json and paste it into the backticks when clicking the ‘</>’ button on the forums here?

Could you provide your docker setup vars / docker compose (without PIIs)? You may need to adjust them if the auth is failing.