Knob caps slipping off.

Recently two of my knob caps became very loose and started slipping off. Has anyone else experienced this? Are there any easy fixes without ordering replacements?

You should replace them anyway. I put Chroma caps on mine, and I never looked back. The Chromas are WAY nicer to use. I think the whole thing set me back about $16.

https://instagram.com/p/BKcgSIMA1pU/