Pulsing keys/clicks specific to application

WhatPulse has stopped attributing keys/clicks done to a certain application when uploading them to the server. It still adds the keys/clicks I've done to my overall stats, but doesn't add them to the application stats.

It is working as normal for most other applications.

Any idea what could be the problem? The program is "osu" if that helps.

I did change where the program in question is located at some point - it is now on a different drive to where it was originally.