This topic is a very general topic of the potential of any particular thing wrong, you can't really describe it and or you have not taken the clutch cover off and put some eyeballs on it as I say.
You have to start somewhere so this is the starting point to help you figure this out
Use these videos to help find it, take any pictures you need and email them to me and let me see, take one inside the primary too from in between the clutches pointed forward centered with flash on like in the video about troubleshooting with a camera.
How to troubleshoot primary
how to troubleshoot secondary
How to troubleshoot a primary with a camera
Ten Reasons why belts blow
How to troubleshoot a 2016-2020Turbo Primary and Secondary