The post-skill cooldown window once an engineer player uses the Bandage Self tool belt healing skill bugs on so many Runes that activate bonuses when using a healing skill. For instance:
Rune of the Revenant - You can get the heal from Bandage Self, dodge in combat, and never receive the Resistance boon.
Rune of Adventure - You can get the heal from Bandage Self, dodge in combat, and never get your 25% endurance.
Rune of Air - Even after healing is granted to player, it fails to grant Shock Aura if one uses another skill or dodges in that hidden post-skill cooldown window
Rune of the Fighter - same thing as above, fails to grant might even after heal is granted because of hidden post heal skill cooldown.
Rune of Grenth - same.
Rune of the Centaur - same.
Rune of the Water
Rune of the Flock
Also the Cleansing Pulse and Reconstruction Enclosure Traits in Inventions line as well