CC2591/CC2592 sensors: temperature "freezes"

[crimean-celica]

I have "freezes" (only temp value) after 4.0.2 "router" flashing:

Can be solved by power off/on for some seconds (but you can see temp "spikes" after these off/on's)
Trying to return to the older version

[crimean-celica]

Ok, a bit more information. I have 3 sensors, 2 * E18 MS1PA1-PCB + 1 * E18 MS1PA2-PCB
I tried to use all 4 images for all of them and got these results:

• MS1PA2 with "CC2591 device" has stability issues with the network - can leave the network in 1-2 weeks and you will need to remove/add it manually again to keep obtaining the data
• all of them have temperature issues with any "router" images: (1) all devices need "-5" additional calibration and (2) all of them stopped sending actual temperature as I said before
• all devices work stable with "CC2592 device" image

[crimean-celica]

p.s.

I have an explanation for temperature "spikes" - these mean sensor re-heating. And I think it may (that should be additionally tested!) be avoided by proper sensor orientation - the device must be oriented in a way that provides the lowest position for the temperature sensor i.e. power "slot" should be at the bottom.