Guild Wars 2

The chill effect applied by the 3rd chain in GS #1 skill does not affect break bars.
Tested on any mob that’s not immune to chill effects.
Applying chill with skills such as “Chilled to the bone”, or Executioner’s Scythe does affect break bars however.

Chill is a DoT to break bars, you will not get immediate result. Chilled to the Bone and Executioner scythe both have stuns which directly damages the break bar.

In other words, you were perceiving the chill as stuns.