Particle system component scale bug (?)

I have a particle system component attached to a bone socket. The problem is that the particle effects have a very different scale depending on whether it’s the local player or a remote player. In other words, if I see myself in 3rd person, the particle effects are rather small. However I see the same effect on other players as being much larger. I’m not changing the scale anywhere, so I’m confused why this is happening. I’m thinking this might be an engine bug. Any suggestions where I might look?