Error message: Failed to save target content: Sequence contains no elements

Hello,

I'm working on an xlf file and have this error message. I've had it before and understand that it comes from a problem with empty comments. Is there a way to find the segment where the empty comment problem is please as I can't see one visually at all. This is a real problem as it's probably just one comment and I'm not going to be able to save my whole target document.

Any help would be gratefully appreciated!

Thanks

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