Edge Explore firmware 4.60 bug - blank screen after waking up from power save


After several rides since upgrade to v4.60 I noticed following issue with waking up device from power save state by touching screen.

When touching screen to wake up device and see map of other data, screen is still blank and only backlight is switched on. It looks that it happens when device is recalculating route due to going off the course. It looks that device is somehow responding and still working but not displaying map or any other data on the screen.

Has anybody smilar issue with firmware v4.60?