Strange bug RB4011iGS

Hello, I have experienced two strange bugs:
First: Version: 6.44.6 (long-term) (it was day before 6.45.:sunglasses:
Symptoms:

  1. OpenVPN stoped working. it was failing on TLS handshake and closed on time-out after 60 seconds of trying.
  2. One of the cores had 100% usage and process was “unidentified”
    Cure: reboot and everything works fine.
    After this i decided to update to stable 6.46.2.
    Second bug: Version 6.46.2 (2 days after update)
    Symptoms:
  3. Everything works but unable to connect with winbox. winbox just closing when trying to connect.
    Cure: reboot.

Now i am at the 6.44.6 and i will update to 6.45.8. but i am curious if someone faced this before and what should i do if it happens again.

You are not along.
http://forum.mikrotik.com/t/rb4011-and-rb1100-ahx4-bricks-randomly/130638/1
I have similar problem with 4011