RelativeLocation replication not working

As found by this guy: Can't replicate RelativeRotation and RelativeLocation with HardAttach - Epic Games Forums

I did some exhausting tests at UDK version 12791 and I was unable to replicate the RelativeLocation.

Probably not what you want to hear but have you tried your own replicated variables? For example with repnotify and once you receive new values assign them to the regular variable?

I’m already doing something similar, but yes, it’s not what I want to hear.