The Translation Automated QA Check step fails with errors that Tag pair "xxx" removed/added.  How can this be corrected as it looks like the tags are ok?

Use the Verification icon in the top right in Online Editor to see the errors.  Click on the error to have the cursor on the segment in error.  Using the View->Show Tag Details->Tag Id, verify that the tag ids in the source are the same as the target.  Clicking in the target and removing the tags, then using, Control-click, will give the list of tag ids. If not corrected, the target file may not be created properly and could fail on creation.  This can be done in Studio also.

The Tag id numbers in the source are different than what is in the target.