Hi, the conflict started after updating to the latest mail poet version 3.89.2.
The Theme developers CMSMasters told me the following: “The issue you have is caused by the fact that the MailPoet 3 plugin that was updated recently.
Our developers are working on a corresponding theme update and as a temporary solution please downgraded the plugin version on your site.”
After that I downgraded to the older Mail Poet Version 3.89.0 to be able to edit my pages and posts, which worked in the meantime.
Today, they released an update for their CMSMasters Content Composer. After updating this, I could update to the latest Mail Poet Version again and now everythings works.
