Dimensions links themselves automatically

Hello,

This problem showed up recently within a part file i'm working on. While in the latest 3d sketch enviroment, every new dimension automaticly links itself to other dimensions that found in previous sketchs; right after i add them or after a few actions. The worst thing is the previously linked dimensions naturaly gets the new value and the whole solid geometry ruins...

It seems like i changed some settings by mistake and now it's impossible to find. What can it be? Thanks in advance.

SolidworksSketching