Grey loading screen IE 11- Captivate 2017

Hello,

When I export my project to our LMS everything is fine with both Chrome and Internet Explorer 11.

The problem is that when someone stops viewing, and then returns later to finish, they get a transparent grey loading screen intermittently through the rest of the video if they're using Internet Explorer 11 only.

This is only an issue with Internet Explorer. It doesn't occur with Chrome. Also if someone starts the project in Internet Explorer and resumes with Chrome, it also works fine, no loading screen???

As per other posts. I have tried un-checking "Auto Play", and have changed the "Preloader %" under 100% as recommended, and it keeps happening. Not sure what else to do. Some of the fixes I am seeing in old posts are for much older versions of Captivate. I was just updated to the newest version of Captivate and am running this on a Windows 7 machine.

Our company can't introduce video to our LMS until this is resolved, and we all are getting impatient. Any ideas anyone may have would be helpful.

Thanks!!!