When creating a new email template, the functionality of the template has recently changed.
Replicated error for both Safari and Chrome, latest versions as of yesterday.
Access to the Email Template edit was accessed from the Configuration icon>>Templates>>Email Templates>>New>>Start with a blank template.
Issues
1) Behaviour of Subject input field now has a multi-line scroll box
2) Any attempt to insert dynamic text in the Body input field of the email results in an error at the top of the window:
Results
1) It seems that the system does not recognize that the cursor is active in the Body input field.
2) Rich text and carriage returns are accepted as input into the Subject field which won't be passed in emails.
Attempted Workaround: edit existing template
1) When editing an existing template, the Subject input field presents a rich text input field with formatting options similar to the Body input field.
2) Same error when inserting dynamic text is attempted.
Other attempts at fixes
1) Flushing caches
2) Private browser window
3) Checked for content blocking
4) Tested on Chrome and Safari, latest versions
No change in behaviours.