If I drag modulator to an effect parameter, multiple destinations are added randomly, up to 4 at once, even parameters from the modulator itsself.
In the example, I just bind Reverb Dry/Wet, but also Reverb Mute was assigned with it.
It is also happening in Standalone so it is not DAW specific as plugin. (this test was made within the standalone)
It is not happening all the time, but it is happening very often.