Unable to remove message variant using Sitecore Email Campaign Manager when variant has been not created in default language.

Steps to reproduce :-

  1. Create new message in ECM
  2. Proceed to message step. Ensure language is not EN default language.
  3. Click action drop down to add variant.
  4. On variant B Click action drop down select remove variant.

The page reloads but variant still exists, I had to create a version in the default language EN prior to deleting the selected variant.

This issue was found using Sitecore with 7.1 and Email Campaign Manager 2.1 140214 it was confirmed as a bug via Sitecore support ticket number 434146 and the workaround above was suggested until this gets resolved in the product.