The first one is spiral wide and I noticed it occurring after the update went live.
When in the battle circle, Spell sound FX are not playing. Background noise, music and occasionally spell sound from adjacent battles play but not sounds from my own battle circle. This has occurred for every wizard I run on each of the worlds, I have been on since the update.
DragonSpyre, Azteca, Grizlehiem, Wizard City, and Mooshu
The second I notice yesterday as I was running my new wizard through the quests of Wizard City. The natural attack by the Lumbering Trolls on Cyclops Lane are not working properly. The troll will cast the spell. Nothing happens and suddenly my wizard has damage. This happened in every battle I fought against Trolls yesterday afternoon. All of their other spells are working just not the natural attacks.
The Ghoststalkers Steven 130 Christopher 59 Christina 6
Updates on the recurring "Battle Sounds Missing Glitch"
Happened with all three of my wizards today On Mooshu (Gravulum quest), Marleybone, (Gravulum Quest) and Cyclops Lane (regular questing).
Each instance of the battle sounds going silent was preceded by the sound of someone joining battle. No one joined and all battle noises went silent. Background noises, music and sound from adjoining battled still played.