Lumia Icon :: Reboots After Latest Preview Update?

I have used my Icon fine with the Preview for Developers version of WP 8.1, until the latest update.Since then, I've had trouble booting the phone when doing a soft reset (it took 3 cycles of going to the red Verizon screen, sitting there for a minute, rebooting on its own before it loaded WP). Also, I had an issue with the lock screen becoming unlockable, and looking like a screenshot of the start screen... kind of hard to describe, but the Start screen slid up like the lock screen, but without the keyboard to unlock. That's happened twice in the last few days and I had to do soft resets (which led to the issue mentioned above).

Today, the phone spontaneously just rebooted itself, while sitting unused on a table. Very odd, haven't seen that before.I should mention that when I first installed the update, I got a Blue Screen error when it booted up, and I had to reboot manually.