Sinope thermostat do not display the correct "current temperature" after a few days

Hello, i have setup neviweb to support my 5 sinope TH1123WF thermostat. They are working great with the neviweb130 integration (Thanks to Claude). The only issue i have with them is that after a few days the thermostat does not display the correct “current temperature”. Everything is still working and only a reboot seems to resolv the issue for a few days.

Any idea?