Hi,
You seemingly have a problem in the public page selection drop down.
If you have a hundreds or thousands of pages, the list in the drop down suddenly ends, for instance at list entrances beginning with letter “M”.
Now, when the page name of your created public page starts with “N” (like “Newsletter Page”), you cannot select it.
If you name it with something starting with “A” or “!”, you can select it, but when you rename it later to “Newsletter …”, it’s deselected again.
Seems a plugin specific problem as I don’t have a problem selecting any page out of the WordPress page editor (for instance when selecting a parent page there).
Would be nice if you could let me know once this bug is solved!
Thanks!