Animate export stalls, need help

[#1]

Originally created in Flash, I exported this file years ago with no problem. Now the client needs an update,  but export to video/media repeatedly stalls at 76% before Media Encoder can get to work creating a YouTube video. Need help ASAP please. The file is here: 

www.nydesign.com/Gisser2016-H.zip

[#2]

Hi mate,

In most cases you can export a PNG sequence + WAV audio separately and render the video in Premiere.

Details here: https://community.adobe.com/t5/animate/export-issue-stops-mid-export/td-p/10424361?page=1

Hope this helps!

[#3]

Thansk, but I'd like the file to exprort properly from Animate, as the program should perform. How can we get that done? is there a problem in the file or in Animate?

[#4]

That is fine, mate.

Good luck in identifying if it's Animate or the file!