Playing a level 60 Ranger and using Longbow, as I picked the trait Eagle Eye trait I noticed it caused the weapon skill Rapid Fire to be uninterruptible by normal means (firing my standard shot for example). This caused the skill to be channeled for a full 5 seconds regardless if the target is dead or gone invisible. In fast-paced PvP this is an issue since being unable to respond correctly when enemies move around you, can cause a significant disadvantage.
Steps to reproduce.
1. Longbow with Rapid Fire unlocked.
2. Select the Master trait Eagle Eye in Markmanship.
3. Fire with Rapid Fire (Default Key 2)
4. Attempt to disrupt firing, with standard attack (Default Key 1)
5. Redo steps 3, 4 without Eagle Eye trait. (Notice that Rapid Fire easily gets interrupted.)