Ok I notice that my toggle for Acendant Bond Fallen (highest Aasimar tier) still shows a blue light around it like it is still on, but i've checked occasionally and the 10% melee power after a while turns off. I'm a pure monk so no other toggles should be taking it off. Initially it beefs it 10% but relogging on as well as something else (because it has happened just during the course of playing -- not sure what triggered it) takes off the 10% -- even though the blue light around the toggle stays on (indicating that it should still be on). But checking my character page highlight shows i've lost the 10% melee power.
I'll try to keep a closer eye on what is triggering it to go off, but meanwhile -- is anyone else experiencing this?