Nope, nothing we know of, I think it's 'so quite' some people don't notice it, also depends on how sensitive your IEM / headphone is / voluime used. For example with a BA I can hear it a lot more than dynamic. But no excuses there's a problem for some, I'm sure you're not the only one. I agree it shouldn't be there, but also don't get annoyed by it. I can see it grabbing hold of people preparing for the next track change, lol but to me it's like 'ok hear comes the next song' "pop"

You can contact Colorfly and ask them I guess, but there's nothing we know in the pipeline.
I can think of a few things they could correct or add actually.