Edit: I have made a new discovery regarding this bug. Please see my reply below.
From today's update:
"Life steal from gems is now limited to 4 procs per second."
Currently, there seems to be a serious issue with this new change, in that:
1) When a player has two life on hit gems or life on hit weapons equipped, the proc counter is doubled.
2) If a player has exceeded the procs per second(PPS) limit, and continues to apply more life on hit effects, the proc counter will not properly reset each second.
2.5?) ALL life steal effects, not just those from gems or rolls, might count towards PPS or interfere with the PPS mechanic in some way(this is only my speculation).
Just a few minutes ago, I tested the new mechanics on the Temple Guardian(To3) boss fight, with my usual life on hit setup(Marauder, and two 48 life on hit knuckles).
Some findings:
-When I had both knuckles equipped, I would frequently exceed the PPS limit with my normal rotation. This should theoretically be impossible, since I attack at most, twice per second(one-handed weapons have a swing speed of 1.66 attacks per second) except when using Rupture(which double-hits for the purposes of life on hit, but also costs double durability) and following that up with a regular attack in the same second. However, even when normal attacking or using a rotation with Sear(which single-hits), I would still exceed the cap easily.
-Once I exceeded the PPS limit, my life on hit weapons would stop healing life altogether for several seconds, and would only work properly again for a hit or two if I switched weapons mid-fight, and then would stop working again. My Marauder effect continued to work properly, but that was it.
-I then decided to try using only one life on hit weapon instead of two. I found that I could get a much more reliable life on hit effect this way(I would heal properly for each swing on most hits). This led me to believe that having two life on hit roll weapons equipped effectively doubled my proc count. However, even if that were the case, there is no possible way I could exceed 4 PPS with only regular attacks unless there was something else at play.
If you could look into this issue, that would be great! I know that this mechanic was introduced to combat AoE sustain, but as it currently works, it not only penalizes players who sacrifice damage for sustainability, but also punishes single-target attackers as much as it does AoE attackers.
Edited by huhbum, 14 March 2014 - 01:14.