Some SXT Lite5 do not reconnect on AP boot

RouterOS Wireless Networking
1

Anyone seen this behavior:

Update the AP where 40 CPEs are connected.
After the Update some of the CPEs do not connect.
We see this only on SXT Lite 5 and only on a few.
All our CPEs are configured the same.
ROS of CPEs is 5.25, seen this on 6.9 also.

The customer has to powercycle the CPE. After then it
connects and behaves normal.

These SXTs are quite new.

2

v6.10 has fix for this issue. Does this happen only in cold conditions, or in room temperature also?

3

We did not try to move this devices indoor yet. We’ve a warm winter. Temperatures are -2 to 5 degrees C.