"Internal error: Multiple tags with the same ID 'Superscript' have different start tag properties"

Hi,

When I try to save my sdlxliff file, I get this error: "Internal error: Multiple tags with the same ID 'Superscript' have different start tag properties". After trying a few things, I discovered that it happens only if I add superscript text in the target segment when it was not there in the source segment. If I delete the superscript and try saving again, it works perfectly.

I know that someone had a similar problem, but the thread doesn't say if it has been resolved. Anybody knows how to fix this? I have to deliver this as a package, so I cannot just manually add the superscript in the translated Word document.

Thanks!