Our fix for the Roku app has been in approval limbo at Roku for a while. In the meantime you should be able to fix it by using the beta version, here's how:
Click here! https://my.roku.com/add/HMQ2MJ
Or, add it manually like this:
Go to my.roku.com
Log into your account
Go to the "Add private or beta channel" section.
Enter the code: HMQ2MJ