It’s been like that for a while, but I couldn’t find any posts about it. All ranger longbow skills go on full cooldown when they are interrupted for any reason, even though they didn’t have any effect at all. One can easily reproduce this by switching a weapon directly after activating a skill or using the ESC key to cancel the skill. They would usually be supposed to go on a shorter cooldown, but this seems to have been changed when the longbow skills were buffed a few patches ago.
Semper Concordia [SC]
Abaddons Mouth