[EpiData-list] Printing datasets "Invalid variant type cast"

Dear all,

I hope someone can help me to track down an error.

EpiData Entry Client v1.3.0.6 offers to print a Data sheet with data. I am trying to use this function for some corrections to sheets, but I can only print a minority of data sets. Most of the time an error message "Invalid variant type cast" appears, asking for OK to ignore or Cancel to kill the program. I assume there is something wrong with the data, but from eyeballing I cannot see differences between the datasets where printing works and where not… Is there a way to find out what is going wrong?

Thank you all very much for your time and help,

Markus