Hi, LeeLoo,
what do you expect us to do?
We do not know your survey? So, please provide it as *.lss.
What is empty?
The whole answer record is missing?
Or: only the data of the questions, but things like "id", "seed", "complete", "startlanguage" are there?
I am sure you can identify the copies which were not entered.
There should be a variable which identifies the person who entered. Then you can see which of his ten questionnaires is empty.
Did you try to enter these again, maybe without real question text, only with placeholders?
If this works you can enter step by step the real text to see where and when the problem occurs, if it does.
or there are answers only to the requested questions
Are you sure that there were data entered in the not mandatory questions?
Joffm