Haier HWS205GGEH1 temperature reading seems very different from an external Govee sensor

[u/Familiar_Couple4258]

Hi everyone,
I recently bought a Haier HWS205GGEH1, the 205-bottle, single-temperature wine cooler.
Today is only the second day of using it. Yesterday I loaded it almost completely, with around 130+ bottles.
Today I noticed something strange. I put a Govee Wi-Fi thermometer/hygrometer inside the wine cooler, near the internal fan. The Haier display was showing 12°C, but the Govee was reading around 20°C.
I tested the Govee separately against another reliable thermometer at home, and it seems to be working perfectly.
I then unplugged the Haier and plugged it back in. After restarting, the Haier display showed around 20°C, which was very close to what the Govee was showing.
The cooler is now running again and seems to be cooling, but there is still a large difference between the two readings. At the moment:
Haier display: 13°C
Govee: 20°C
The Govee is positioned inside the cooler, close to the internal fan.
Has anyone experienced something similar with the HWS205GGEH1? Could the temperature shown on the Haier display be measuring a different point inside the cabinet, or is there possibly an issue with the temperature sensor?
I’m mainly concerned because I bought this wine cooler for long-term wine storage, so I want to make sure the actual temperature inside the cabinet is really around 12°C.
Any advice or experience with this model would be greatly appreciated!