Unable to play the same 4K movies or TV shows on multiple Sony 4K Media players with the same account.
There may be various reasons why a downloaded 4K movie cannot be viewed on multiple device. Contact the PlayStation® Network (formerly known as Sony® Entertainment Network) support office for assistance with any questions regarding PlayStation Video 4K movie purchases or account assistance.
On the web: www.playstationnetwork.com/support
By Phone: 855-999-SONY (7669)