Storyline 3, IE 11: Stuck on Loading Screen Published as HTML5, Loaded in LMS

We have had consistent problems since upgrading to Storyline 3.  The content is published as HTML5, and loaded into our SABA LMS.  The content gets stuck on the Loading screen (please see screenshot) when viewed in Internet Explorer 11.  (Emulated in our LMS as IE 9).  The content works fine in Chrome, Firefox, etc - other browsers.  This seems to be a consistent problem, from all the posts I've seen.  Please help!!  We have been using Storyline 2 for years with no problems, and now have problems with Storyline 3 and IE 11, HTML5 or HTML5 with Flash Fallback.  Thank you!  

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