Happened twice already, as soon as I cast Circling on a huge pack of mobs, the game goes into a weird freeze state where all the party members see the same screen frozen, can queue up skills, but nothing actually shows on the screen as casting. Need to relog to fix the problem, and upon re-entry, a lot of the mobs that were in the pack are dead and we have gained some exp (or not because we died?). Really problematic, because Circling is basically the only reason anyone picks up Falconer, and without Circling there is basically no AoE coming out of an A2->QS3->F1->M1.