Thank you for taking the time to visit the Community to post your issue, although I apologize that you haven't received a response.
If you have not done so already, I would start by resetting the Quicken cloud.
Go to Edit > Preferences > Mobile & Web
Click Reset your cloud data.
Go to Edit > Preferences > Quicken ID & Cloud Accounts
Click sign in as a different user
Type "yes" to sign out
Once this has been completed, please attempt to update once more and let us know the results.
-Quicken Tyka
Thank you for the response although I apologize that this trouble continues to persist.
At this time I would recommend contacting support directly for advanced troubleshooting steps.
https://www.quicken.com/support#contact-support
Quicken Care has the tools to review the logs and escalate the issue if necessary.
Thank you, -Quicken Tyka