I have created a workflow in SPD 2013 to send and meeting Invite Email to attendee in Calendar list. Workflow immediately gets canceled with 401 Error even if there is only single Log activity (I have removed Email activity).

When I create any workflow in subsite with the same user it works perfectly. Subsite Inherits the Permission so No permission issue. I am running workflow with Full control access user

I have tried the following,

  1. Restarting Workflow manager service

  2. Re-Register site collection with Workflow Manager service

  3. Re-publish workflow

  4. Tried on another list in the same top level site collection.

Below is the Error.

HTTP response content could not be read. 'Error while copying content to a stream.'

Please guide in case I am going in some wrong direction.

Thank you.

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