Google Drive "Upload a File" action failing with "Script ID could not be opened" error — reconnect doesn't fix it

I'm using the Google Drive → Upload a File action to push files (URL to Drive folder) as part of my workflow. This step has started failing consistently with the following error:

{
  "error": {
    "code": 400,
    "message": "Script ID MQKgJ4TFmMDMOkOoNa5muLmmy7uZSrO0E could not be opened. Please check that the script exists, and that you have access to it.",
    "status": "INVALID_ARGUMENT"
  }
}

Workflow ID - IjU3NjcwNTZlMDYzZjA0MzQ1MjZjNTUzMDUxMzMi_pc

What I've already tried:

• Fully disconnected and created a brand new Google Drive connection (not just "Refresh Fields") — same error persists
• Verified the source file URL, Folder ID, and File Name fields are all correctly filled and were working before
• Checked that the connected Google account still shows in Google's third-party app permissions

Details of the action step :

• App: Google Drive
• Event: Upload a File
• File URL: from a Pabbly file-uploader asset link
• Response format: Simple

Since the Script ID in the error belongs to Pabbly's internal integration (not something I created or have access to), I believe this is on Pabbly's side — possibly a broken/rotated internal Apps Script deployment for the Google Drive connector.

Request: Please look into this on priority as it's currently blocking an active client automation. Happy to share workflow ID / account email over a support channel if needed.

Hello,

It appears that you are using the legacy version of the Upload a File action step. Please try using the new version, which is also named Upload a File.