Custom Field issue:
When you add a custom field in Pie Register Settings
If you make changes on the Pie Register Email Notifications page the custom field is removed. You must then go back and re add the custom field.
Also on the Email Notification page "Send as HTML Convert new lines to
tags (HTML only)" do not work.
When you check the boxes it only saves for "User Message" the others are unselected when the page reloads.
It also appears that when html is selected the headers aren't being set correctly in the end email mime is being set twice on the same header line.
html is not being used at all