Since upudating to limesurvey206plus_build160129.zip when I click on a text array question I momentarily can see the subquestions and they disappear... the only error code I can see is 'unreachable code after return statement'. I tried copyig and then re-adding the question and it is the same problem. Running php5.6.6. Nginx with Ubuntu. Any ideas much appreciated.

Consider reporting your problem here: bugs.limesurvey.org . You can upload your survey or question file there too.