I uploaded two different HotPot activites to a Moodle 2.0 webpage. In both, the check and submit button appear and work for the FIRST person to use them ONLY. whether it is myself or a student name once these quizzes have been taken, everyone else still has access but the buttons no longer work so nothing is saved or reported. The quizzes appear to work fine in all other aaspects.
Any suggestions? I have tried delting the quizzes, resaving, re-uploading, allowing one attempt and several, as well as saving the files under new names to try again.