Problem with temperature value below ZERO on widget

Dear All!
I have managed to set up the dashboard of widgets of a Lora Sensor seeed outdoor temperature and humidity sensor. This sensor sending data to helium network. Using helium console managed to set up the integration of Cayenne, than the values comes to Cayenne temperature widget. All working well, except if the outdoor temperature value goes below zero Celsius, the widget value start to show huge values like 4294963.
Can you help me please how to fix this problem?

what is the device name and can you share the devEUI.

Oh yes of course, sorry!
Device name: SensorPi

Seeed Sensecap wireless air temperature and humidity sensor, below the link its documents on it.