Page content box not showing
Using Jamroom
From this post in the foru announcements - https://www.jamroom.net/the-jamroom-network/forum/announcements/62030/important-tinymce-upgrade-in-jamroom-core-640
Quote: To fix any errors you need to do the following:
1) Make sure any 3rd party Editor plugins (such as the Editor Code Mirror plugin from Ultrajam) are disabled for now until they are updated to support TinyMCE 5+
1) Make sure any 3rd party Editor plugins (such as the Editor Code Mirror plugin from Ultrajam) are disabled for now until they are updated to support TinyMCE 5+
You had this module installed and enabled. I've disabled it and the page editor field is now showing.