Other people are reporting problems with OAN. You can use this forum's search function to find them.
Otherwise, when having problems like this, please report which channel app you are having problems with. Each channel creates, provides, and maintains its own app to stream their channel to the Roku, as well as deciding and programming its features, including geographical areas of operation. Roku only provides the platform on which the 3rd party channel apps run. You should direct your questions and concerns to the channel. (Exceptions are the two channels provided by Roku, The Roku Channel and Roku Media Player. For these you should contact Roku.)
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X