For Quicken 2015-2016 for Windows with the latest 2019 update, make sure to disconnect Quicken account from online services.Updated Quicken 20 have the issue fixed the same way as Quicken 2017 with one exception:
IMPORTANT: This is an outdated tutorial, but still relevant if you are still using Quicken 2015 or Quicken 2016 before it was switched to a new Quicken ID.