I previously created a one-time manual bill.
As we approach the originally scheduled date, I would like to move it out a few weeks.
When trying to Edit This Instance, and selecting a future date, Quicken displays the error "Invalid Instance Date" and won't allow the update to be saved.
There is a workaround, and that is to Edit All Instances (which is fine but it doesn't make sense because the was only ever one instance of the bill).