The View All does not work for me either. I have tried all solutions suggested and have notified Acorn numerous times since July or August. Acorn emails back stating problem fixed and to take it up with Roku. Roku says take it up with Acorn.
I have updated Roku settings, updated Acorn app, deleted and reinstalled Acorn app, powered on/off router, cleaned Roku cache, deleted network and added it back. Help!