Some sensors have unpredictable names
Some types of sensors are USB HID devices. The name of these devices depends on the order that all USB devices enumerate. This is effectively random.
An example of such a sensor would be Corsair PSUs.
The sysfs name attribute is "corsairpsu"
In libsensors it is listed as "corsairpsu-hid-3-8"
In xfce4 sensors plugin it is listed as "corsairpsu-8"
After every reboot, "8" changes to a different number.