Hi n8n team,
I’m facing a workspace-level OAuth issue on n8n Cloud.
Problem:
All Google OAuth credentials (Google Sheets, Gmail) fail during authorization with the error:
“Unexpected token ‘S’, ‘Salted__…’ is not valid JSON”
Key details:
I am using n8n Cloud (not self-hosted)
The issue happens for multiple Google services (Sheets + Gmail)
The error appears immediately when clicking “Sign in with Google”
The issue persists in Incognito mode
Deleting and recreating credentials does not help
Creating a new workflow/node does not help
This seems like an OAuth encryption/decryption issue at the workspace level.
Request:
Could someone from the n8n team please reset or repair the OAuth credential encryption for my workspace?
Happy to provide workspace ID or any additional info if needed.
Thanks!
Describe the problem/error/question
What is the error message (if any)?
Please share your workflow
(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
Before sending an official request to [email protected] with your workspace ID, in order to create a ticket number, so a staff member who’s willingto assist when is available and can handle that…
Is the app in test mode? Maybe the token expires and needs to be published.
I’m have similar issues. Earlier today I could no longer reconnect any of my Google Credentials (Drive, Doc, Sheets). Funny thing is that some of my workflow nodes could still connect but the google docs node could not update or append any docs. I spent hours with Claude trying to debug via the MCP connection. My local hosted version of n8n works fine. Something is blocking the n8n.cloud domain. I’m running the latest beta version of cloud n8n (2.1.1) it was having the same issue with the prior version of the beta. I’ve verified in the Google Cloud Console → API & Services Credentials are all correct including the URL redirects. I have a Claude summary of the issue with questions that your support needs to look into in a shared Google Doc –> Click Here.
My n8n instance is: b01e799c8597a418342586f9fe42b57cf7798483b7d7540aea0ab43464ea70a2. Debug info is: Debug info
core
n8nVersion: 2.1.1
platform: docker (cloud)
nodeJsVersion: 22.21.1
nodeEnv: production
database: sqlite
executionMode: regular
concurrency: 20
license: enterprise (sandbox)
consumerId: 00000000-0000-0000-0000-000000000000
storage
success: all
error: all
progress: false
manual: true
binaryMode: filesystem
pruning
enabled: true
maxAge: 720 hours
maxCount: 25000 executions
client
userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/143.0.0.0 safari/537.36
