I purchased one of the add on for for hitfilm but it does show up yet any suggestions
Please can you try restarting HitFilm a couple of times to see if that will help with everything syncing up.
You can also check to see if the addon has been added to your licence by opening up HitFilm and going to the following location
File > Options > Activations
If you are still stuck after checking those 2 things, feel free to send us a support ticket
@PmStudioImages Please contact support directly: https://fxhome.com/support