"File not found" when uploading Trello attachments with Zapier

[Céline]

Hi,

I use Zapier a lot for automations and I've been getting issues with Trello recently.

Expected behaviour

When a card is moved to a specific list of the same board, the card attachments automatically upload in Google Drive.

Issue

The following error occurs :

The upload file could not be sent to Google Drive. While requesting "attachments" from Trello we ran into an error: The app returned "File not found".

Already tested

• Running the same action with Integromat (unsuccessfully)
• Using CloudConvert instead of Google Drive (unsuccessfully)
• Creating a new card and adding the exact same attachments (it worked but I have no idea why...)
  
  

Additional context

• Attachments are all PDFs added from a computer, so if I'm not mistaken they're actual copies of the files and not links to the documents in their respective locations
• It was working well in 2020 but I can't recover Zapier logs for last year
• In 2021 it only worked once out of 5 and I can't figure out why it worked this one time (I can't seem to find any difference that would explain the source of the issue)
• The upstream process has not changed at all on my end
  
  

With these findings it would appear that :

• The issue comes from Trello
• The size and format of the attachments are not at cause
  
  

Any ideas?

Thanks all!

[Xavier]

Have the same exact issue, did you find a solution?