1. In Newsletter design area, I hit ‘Save&Preview’ button.
2. New window opens, then I hit ‘Switch editor/preview’ button.
3. I make html code changes, hit ‘Save’ button then ‘Back’ button which takes me to the Newsletters area.
4. When I click ‘Edit’ to return to the design area I notice that the changes made in the html window were lost. The design remains, but the manual code changes are lost.
Newsletter Plugin Version 5.7.1
Wordpress Version 4.9.8.