copying duplicates dynamics

I just tried copying a section of music to another spot and it duplicated and stacked all the dynamics, including the hairpins. Could this have to do with the XML import linking the dynamics? I avoided the problem by clearing the destination section before copying.

Check this: https://www.steinberg.net/forums/viewtopic.php?f=246&t=151103&p=812580&hilit=link+dynamics#p820053