There could be a multiple ways of looking at what LimeSurvey intends for the preview. First, would be that no matter what error that there would be a preview; second, would be to attempt to display as much as possible without running into an error condition - of course, the second appears to be the case here. In addition, the survey logic checker does not check the syntax of potentially incomplete surveys.
Your second problem I believes stems from an error in the LimeSurvey code (see my bug report
bugs.limesurvey.org/view.php?id=7161) - to make sure you may want have your second student turn on full debugging by changing their config:
Change the following:
// Use the following config variable to set modified optional settings copied from config-defaults.php
'config'=>array(
// debug: Set this to 1 if you are looking for errors. If you still get no errors after enabling this
// then please check your error-logs - either in your hosting provider admin panel or in some /logs directory
// on your webspace.
// LimeSurvey developers: Set this to 2 to additionally display STRICT PHP error messages and get full access to standard templates
'debug'=>0,
'debugsql'=>0 // Set this to 1 to enanble sql logging, only active when debug = 2
)
to the following:
// Use the following config variable to set modified optional settings copied from config-defaults.php
'config'=>array(
// debug: Set this to 1 if you are looking for errors. If you still get no errors after enabling this
// then please check your error-logs - either in your hosting provider admin panel or in some /logs directory
// on your webspace.
// LimeSurvey developers: Set this to 2 to additionally display STRICT PHP error messages and get full access to standard templates
'debug'=>2,
'debugsql'=>1 // Set this to 1 to enanble sql logging, only active when debug = 2
)
