Community Nodes keep Workflow from working

Dear n8n lovers,

I noticed in the last week that when I have a community node in a workflow it often cannot be started anymore and the webhook produces answers like this:

“code”: 0, “message”: “Unrecognized node type: n8n-nodes-caldav-calendar.caldav”

The webhook then has a 500 error.

I have this problem with caldav and imap nodes from the community.
Anyone has a similar problem or knows why it is happening?

For me the only way to stop ist is removing the nodes completely from the workflow.

Looking forward hearing from you.

Hi there,

Normally this is caused by a node not being installed.
Are u in queue mode? Did u make sure to set the ENV variable that installs missing packages?

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