Hello!
As
documented
, the placeholder should be in file groupdescription.pstl not in startgroup.pstpl:
groupdescription.pstpl: This template file is used to display a description of a group. It is separate to the startgroup.pstpl file because in a "question by question" survey it will be displayed on its own unique page in between groups, whereas in a "group by group" or "all in one" survey it provides a header to the subsequent questions. groupdescription.pstpl does not have a corresponding 'closing' template file, so all tags should be closed.
In the default template, where I traced the problem, the placeholder is there.
Now, my doubt is if I miss interpret the option "Show group name and/or group description". Should, in a question-by-question survey, the group description never appears in each question?
Thank you for your attention.
Fernando Algarvio