Why does my s42 golf watch record my putts but there is nothing under performance statistics?

Putting statistics require an Approach CT-10 sensor to be paired to the putter so the location in relation to the green are recorded during the round while on the green. 

The putts entered for stat tracking reflect on the scorecard only to reference the amount of putts for each hole. 

The AutoShot feature is limited and cannot detect slower swing speeds or softer impact. Therefore, shots like putts, chips, and short wedges are normally not recorded. The CT10 sensors, when attached to the putter and wedges, fill the gap left by AutoShot.