Tplink Kasa Matter enabled Smart Switch not discovered in HA Matter

I just purchased several Tplink Kasa Smart Switches (KS205P3). They support Matter integration. I have installed them and have added them to Kasa app. Updated the Firmware. I have created a simple integration with Alexa based on an Aqara Motion sensor and all this is working fine.
I am setting up new Home Assistant Yellow (HA 2024-12-05 ver). When I try to add these switches to Matter in HA, these are not getting discovered. I get message ‘Device Not Found’ after I provide the Matter code. Any help will be appreciated!