Have Roku Express boxes - have been communicating with Peacock since July with no improvement. Episodes end prematurely, also no menu to choose season or choice of episode. Have given all info they requested, reset several times, and this does not happen on Netflix, Disney+, Paramount+, etc. Upgraded to Peacock+ paying extra and just getting extra frustrated! Have watched 3 seasons without seeing the end of ANY episode. So what is going on between Roku and Peacock?
You didnt mention your Roku model # or firmware version (Settings/System/About) or app version (highlight the app and press Options (*) on the remote).
Try reinstalling the Peacock TV app:
1) Remove the PTV app (Highlight the app, press the Options (*) button on the remote, then Remove)
2) RESTART the Roku (Settings/System/System restart/Restart) <-- MUST DO THIS HERE!!!
3) Re-install the PTV app
(If you dont restart after removal, settings/cached data associated with the app are left behind and it wont be a clean re-install)