Problem Description, Symptoms & Impact The problem persists over different browsers, incognito mode and computers. The training status is "In Progress". The number of problematic users is small usually limited to 1-5. Diagnostics The issue usually presents itself on the student's (not admin's) side as a grey (non-active) button or a page that is not loading completely. Workaround & Solution Clear the cache and cookies in the browser. Pause the training for the problematic user and then restart the training.