Video export cut off

Help
#1

Using v 1.19.3

Student created an animation with audio but when he exports it using the video option the audio gets cut off at the end.

Here is the original file: https://drive.google.com/file/d/1DAPbGc_qWh4ek8U--phKoVE1-qt7xg-B/view?usp=sharing

Here is the video file: https://padlet.com/mamaroneck/animations-8-j3th9spja0dx1ubj/wish/1xkVaqoLol6lZl0e

#2

What did you try to export it as? and also, are you on a chromebook?

#3

exported as a video file. yes, on chromebook

#4

And there is this one from another student using a chromebook. The airplane sound plays at the beginning of the .wick file but not in the .mp4 file??

video file: https://drive.google.com/file/d/1n_lEG1qciDAKr4Bv0CNOkB4aPN56Rx6n/view?usp=sharing

The original file: