I got some problems with Rupture.
It doesn't show at first, only after about 1 second (I assume this is because the damage doesn't start ticking right away, but Find Weakness shows the instant I use it, and that doesn't do any damage in itself, so this shouldn't be a reason for not showing Rupture as soon as I hit it).
Sometimes, however, I don't get a timer for it at all. It did show up on the boss, but not in the timers.
Any idea what this is and whether it can be fixed?