Zoho not saving my changes to plain text emails

Zoho not saving my changes to plain text emails

When Zoho automatically generates plain text versions of my email camapigns, there are MANY extra line spaces.

I have manually gone in -- twice -- to edit the plain text email. Then I SAVE my work.

However Zoho -- each time -- reverts to its own automatically generated plain text emails and does NOT use my saved version in my test emails.

WHy?