Scanned a bunch of receipts from the android app. Most of them can through fine but there are several that have been stuck in "Processing" for several hours.

Stored cache files within QuickBooks mobile app might have caused the unexpected behavior, perry4. 

We can perform a few troubleshooting steps to clear the cache. I suggest that you keep a back up copy of the receipts that are still processing. Let me show you how: 

Within QuickBooks mobile app:

1. From the Menu ☰, select Help & Feedback.
2. Click Refresh Data.
3. Select Refresh. 

In your device Settings 

1. From your device's Settings, select Apps (varies by device).
2. Select QuickBooks app from the list, and then select Storage.
3. Finally, select clear data.

We can check the scanned receipts again if they're now successfully uploaded. You can also directly get in touch with the third-party receipt scanner if you're using one. 

Get back to me if there's anything that you need help with. Have a great day and stay safe!