THERE IS AN SOLUTION: If you use the current Hubitat version, the following is at the top of the installation page:
The 125M is not supported by the built-in integration (different API and comms protocol). HOWEVER, my community "Tapo" integration supports the KP125M (as well as other new protocol Kasa products that use the same API/comms protocol as the TAPO bulbs, pligs, and switches). See link at bottom.
While doing discovery, assure you have selected the install kasa devices (to true):
Link to Tapo Installation. Be sure to read the instructions.
'[RELEASE] TP-LINK TAPO Plug, Switch, Bulb, Hub and Robovac Integration
'tpLink_Hubitat/Docs/TapoInstallation.md at main · DaveGut/tpLink_Hubitat · GitHub
I am also finalizing a version of the built-in Kasa integration that will add these new devices to the mix. However, I have to get the Hubitat Team to agree to add to their baseline.