Hi gjh,
I did a survey on fb about whether the system is stable after the upgrade, https://www.facebook.com/groups/ ... k/2817905121559974/,
I did not see information similar to you, you can upgrade the latest firmware, try again.
Palavan, It might be the voltage to the controller is too close to threshhold, I had this same problem using a laptop brick at 18V 4A, when I moved to a 24V 2A power supply the problem went away.