Content list is null. Cannot find last child

Hi

My searches of earlier posts highlighted that this is not a new problem but I have only been able to find a solution for Trados 2011. The option not to extract hyperlinks as defined in the relevant KB doesn't (seem to) appear with Trados Studio 2015 Freelance (under Windows 10). I have tried this option but it didn't help. Is there a guide for resolving this is in 2015?

Many thanks in advance

Ian

PS - Needless to say it is urgent (delivery deadline today :-()