Thanks for sharing your input, Mark. I'll point you in the right direction to have the QuickBooks Online (QBO) desktop application working to its default function. 

Since the issue persists, I highly recommend contacting our support team. They can look into your account securely and conduct further investigations to determine the root cause of the problem. They can also provide the best possible troubleshooting to help you fix it. 

Moreover, I'm also providing this reference to help ensure QuickBooks runs smoothly on your desktop: System requirements for QuickBooks Online products. 

If you need further assistance managing your QBO Desktop app, you can utilize the comment section below, and I'll respond as soon as possible. You can also post here again if any questions regarding the program arise. Keep safe!