I've noticed issues with playback with Roku since the latest update. I can open the app, navigate around, but when I play, I get a playback error found, try again message. I've tried everything from restarting, to deleting the app, and re-installing. I've also tested on two different roku devices. TCL P607 and Roku Streaming Stick +.
I'm really happy for the Airplay2 and homekit updates, but seems like they've made a mess for many of their app developers :/
Thanks!
I've occasionally gotten that error/had that issue, generally with recently recorded content made available for replay - but its existed prior to 9.4 (though it has gotten worse recently, not sure its 9.4 related).
Regardless, contact CBS AA about it (its their app, their error):