I updated to 4.4.2 to all my sites and haven’t had the issue for a week now.
But sometime it takes time for the issue to reoccur, will update if issue persists.
I also have had this issue, it keeps on getting 404 broken css/ js.
The error goes away after i clear the cache, but I can’t keep my eye on the site everyday just for this.
Would appreciate permanent fix from the team.