When i relogged today after the new patch i shot away an Affliction spell… No problem with the grafics.
However when i then after that fired away an Frostbolt, Both an Affiction spell and a Frostbolt shot away at the same time… If i used another spell it kept stacking.
There where no effect from theese spells damage or CC wise but only the particle effects stacked.
Even shooting the same spell after one another stacked… (could hear it in audio)
In the end it was so bad that i had to restart client from lag.
Then the stack was cleared but it all began again.