Rise blank screen issue

Hi Katie, this took a long time to solve and was found after much testing by our LMS provider (Kallidus). For us it turned out that the problem was caused after Articulate made a change to the Scorm driver file in the last Rise update (which I think was around November 2020). Our LMS couldn't handle the change (where a course was published as 1.2 but was being detected as 2004) and therefore anything that was packaged with the new driver would return a blank screen on second launch. The fix was to simply find an old Rise course (pre-Nov update) copy out the scorm driver and use this in any new packaged content. It iss a complete pain having to swap out the scorm driver every time we create or update some Rise content, but we don't have the issue any more. 

Incidentally there's a few mentions in this thread of testing in scormcloud. However our LMS provider stated that this doesn't fully test the granular detail and functionality of courses in the same way that a commercial LMS does, so it's a litmus test at best.

I hope this helps.