Last night during our raid i noticed my death strike was healing for rather low ammounts. At first i thought it could be some bug with the blood shield tracker addon but looking at recount after the raid was over it confirmed my suspecions that it was only healing for the base ammount (+ scent of blood bonus).
After the raid was over i did some tests, first running a random heroic and paying close attention to the heal ammount, which was never changed by the damage i took, only by the scent of blood.
Then I rounded up some mobs on a questing area after taking off all my armor and again the heal ammount (both the one displayed on BST and the actual heal i got after death striking) and shield size never went up, even after the mobs took 70% of my hp in under 10 seconds.
I haven't seen any other DK complaining about this so it itsn't a general bug, and since i believe this is handled server side it's also not something with my client. I'm not really sure what's happening so I came here searching for help and to see if there's anyone whom that ever happened to and how to "fix" it.