Has anyone had issues saving subject lines when using the new editor?
Typically, it takes 5-10 tries to get the subject line to actually save.
One trick: I would edit the subject line, then click Preview and it would finally take. Also, making the subject line a token can take the editing outside of the email editor.
I believe the issue arries when you paste text into the Subject Line. If you type into the field, it also seems to save.
I came across the same issue. When I typed the subject, it worked for me as well.