Low Temperature Reading Orange Pi Zero kernel 5.10 (was ok Kernel 5.4)

Using Orange Pi zero Revision 1.5 loaded with Armbian Buster 21.08

ArmbianMonitor Logs:

http://ix.io/3UXu

The board is reporting very low temperatures, with htop and when I ssh on the login banner.

Temperatures range from 3 or 4 C but also seen -3404C screenshot

https://imgur.com/a/SCLVMYl

Previously with Armbian 19.11 and kernel 5.4  temperatures were reported normal 33 or 37C

I dont overclock and run my SoC from 480 to 960MHz  (keeps current and power down).

Screenshot of Armbian 19.11 kernel 5.4 and kernel 5.10.4.sunxi

temperatures were normal (30 - 37C)

Screenshot below:

https://imgur.com/a/cFoXG8H

Not sure what has changed in kernel 5.10.60, will it be safe to download to kernel 5.4.88  or will

it break my installation?

Everything else is working fine.

Thanks in advance