students unable to submit answers to problems

[Julia Mullen]

Hi, 

We have an odd, intermittent error that crops up.  Students are trying to submit their answers to one of the problems in a given course.  For some reason some of these students can't submit the answer.  Unfortunately, they don't get an error message - it is more that nothing happens - they hit submit and it appears to take the value but nothing happens.  From what we see they have not exceeded the limit of submissions, we aren't seeing anything obvious in the logs, it only happens to some students, I can't reproduce it on my test student account.  

Some information - we are running Dogwood without any modifications beyond enabling microsites.  

Has anyone else seen this behavior?

Thanks for any help or insight you can offer.

Julie

[Julia Mullen]

sorry - quick correction - this error is happening on a Eucalyptus instance.

[Deepak Bartwal]

I am facing same issue. Did you find the solution ?  if yes then please share.

[Robert Raposa]

I'm not sure how helpful this will be to you both, but a lot was changed and potentially fixed in this area in Ficus.

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Robert Raposa

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[Braden MacDonald]

This sounds like the MathJax CDN deprecation issue. Check the browser's JavaScript console for MathJax/JS errors - if you see some, then that is the reason. There is more information in the thread at https://groups.google.com/forum/#!topic/openedx-ops/iuQyfuBE_o0 and the related links. Upgrading to Ficus.3+ is the best fix, but you can also work around it as described therein.

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Braden

@OpenCraft

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