Revenge of the Ranking question is back..
From Write questionnaire:
Add, Ranking - give out a name - OK - OK - the question eventually gets created. Mostly - it does not appear in the list (also it does not get created invisible :) )
After getting a Ranking detail or typing down something as question text and adding at least one question, changes this behaviour. From now and on, if you do the same thing you did before, the questions gets added even without typing a question. :(
This is not session based btw.. I got this one until first Ranking question gets added successfully...
I think you have to check it throughly the Ranking question and whole sub process..
Hope this helps.