bought the particle effect, shows up in the cosmetic thing, but doesnt show the particles once i enable it
Do you have your particles disabled in settings? (Hit ESC>Options>Video Settings and then you should see the particles option on the right. If you're using OptiFine, hit ESC>Options>Video Settings>Animations> and then see particles on the bottom right) If you have your particles enabled and they still aren't working, I'd advise talking to a staff member to help resolve this issue.
It's all cool, glad I could help! If you have more questions, feel free to add me on discord _LeaveMeAlone_#2585