Using Launchpad Theme.
Each widget effectively opens/closes -- but do not function correctly. Open the 2018 widget, and it works with it's respective layer -- but then close it and open the 2019 widget, and that one just doesn't work -- displaying no data or errors.
Close and re-launch the app -- open 2019 widget first, and it displays those images just fine, then open the 2018 widget, and it no longer displays those images.