Storyline 3 - Viewing slide has Audio freeze page/infinite loading

Hi, when viewing slides that contain Audio, the page freeze in IE11 and change the cursor to the Articulate loading circle and won't resume. I've troubleshooted for a couple of hours yesterday while trying to find information in these forums but the only information I've got was that it was because of Internet Explorer 11 ¯\_(ツ)_/¯.

When viewing the project locally on my personal computer on IE11, it works fine / plays audio but when viewing locally or on the server of my work laptop that contains security measures, it keeps on loading. Is there a script linked externally or a JavaScript file that needs permission and isn't showing? I often have to input a line of code in my html files to pre-accept javascript for IE <!-- saved from url=(0014)about:internet --> which I'm thinking there should be a file in the publisher that I could edit.

I'm kind of desperate to the point of transcribing all the audio (there are a lot) into text on each slide. I'm wondering if there are any fixes for audio in IE11.

I'll try to eliminate all the technical questions that I see in other forums:

I've tried:

• Replacing audio files
• Optimizing audio files
• Removing audio to isolate the problem (When no audio, the slide can be viewed)
• Viewing a non-secure network on IE11 works but on a secure server it doesn't(Not sure why)

Information:

• Both personal and work pc Windows 10 (Latest updates)
• IE11
• Storyline 3 (Latest version)
• Publishing LMS HTML5 only with SCORM 1.2
• Confidential information - I can't share the storyline file
• The work pc contains a custom antivirus that IT is maintaining (I'll contact them if you suspect that's the problem).

 

Thanks for any suggestions!