Thank you for reaching out to the Community and telling us about your issue, though I apologize that you are experiencing this.
From our end, it appears as though you have five Chase accounts set up successfully for Quick Pay. The biller itself shows as healthy currently as well. Is this now the case on your end as well?
In order to determine what exactly you are describing, we would need to look at it while the problem is occurring. It does sound like you found a workaround that is resolving the issue for you. I understand that workarounds can be frustrating at times, especially when they get to be excessive. So my suggestion would be for you to reach out as soon as the issue presents itself in the future, so we can get a better idea of what you are going through.
If you have any more information on this, questions, or concerns, don't hesitate to let us know!
Quicken Alyssa