Files must be uploaded to temp storage, we cache the result for 1 hour. This means that if you open a URL, change the image/video in Airtable, and then open it again, you'll get the old attachment for an hour. The new file will be returned afterward.
💡Tip
You can 'refresh' the cached attachment by creating a new record in Airtable and uploading your attachment. This will regenerate a new URL that works instantly.