Hi Joe,
I have answered the questions below:
* Are you able to replicate the behaviour when publishing to web, LMS, or Review 360?
* The recording plays fine in Preview, but not in the LMS or review 360
* Is this a recording that you made using Storyline 360's screen recording feature?
* No the recording is from an external MP4 which plays all the way through
* Does the video play normally when you open the file directly?
* Yes it does
In light of internal restriction, I am unable to upload the file or download the system that you are referring to.
Many thanks,
Matthew