When you change channel groups in radio guide, then exit (Esc/back) to Radio, when you return to Radio Guide the channel group is reset to 'All Channels'

h4. Steps to Reproduce
Setup at least two Radio Groups in Config (you don't need radio guide data to test)
In MP go to Radio Guide. select the Change Group button and change to any Group other than All Channels Group
Exit Radio Guide (goes back to Radio)
Return to Radio Guide - Group is reset to All Channels

h4. Additional Information
This is likely a result of Channel Groups being 'built-in' to the Radio Plugin.
When you press Esc on Radio home screen you navigate to a channel groups window. If you change the Channel Group there, it is retained when you return to the Radio Guide. In effect this overrides the Channel Group button in Radio Guide.

This issue has existed since Radio Channel Group button was added in MP 1.2.0