I'm also on 1.0, however not using an actual Shield remote. Not able to use the dedicated >> & << nor dpad r/l for skipping, etc. (on paired B/T Fire Remote). I don't see corresponding dedicated keys on the official Shield remote, what buttons are on the Shield remote which work for skip frd/back? Also, currently don't have Harmony Smart remote paired to Shield.
Today, I just let the Shield run on various shows on Channels (Live TV). Multiple times (5x), it crashed back to main menu (OSD: Open App again and Send Feedback options), all within 5-25 minutes of starting the show. After several crashes cleared cache (was 2.2gb) and data (minimal mb). No change in behaviour, still crashed. Changed screen saver time to "2 hours" and sleep time to "Never". No change again, still crashed.
Each crash also caused a restart on Channels DVR.