Hi c_rice3, I appreciate you taking the time to go through those troubleshooting steps. Could you share the specific error message you're seeing? Any additional details will help us pinpoint the cause and find an accurate resolution.
In the meantime, please visit your Etsy account to check if there's any maintenance or technical issues that might preventing from sending the data to QuickBooks Self-Employed.
If on the other hand you need to categorize transactions immediately, I recommend signing in to your Etsy account outside QuickBooks and manually uploading your transactions in a CSV file format to ensure you have the latest data.
Don't hesitate to reply here for any additional information or if you require additional assistance.