Thought I'd bring attention to an incompatability error, after updating Calamity and AA to the latest versions, Calamity fails to load and gets disabled. Turning off AA allows Calamity to load properly again. The error message is as follows:
System.NullReferenceException: Object reference not set to an instance of an object.
at CalamityMod.NPCStats.GetNPCDamage(NPC npc) in CalamityMod\Utilities\NPCStats.cs:line 45
at CalamityMod.NPCs.AquaticScourge.AquaticScourgeBody.SetDefaults() in CalamityMod\NPCs\AquaticScourge\AquaticScourgeBody.cs:line 19
at Terraria.ModLoader.NPCLoader.SetDefaults(NPC npc, Boolean createModNPC)
at Terraria.ModLoader.Mod.SetupContent()
at Terraria.ModLoader.ModContent.<>c.<Load>b__38_1(Mod mod)
at Terraria.ModLoader.ModContent.LoadModContent(CancellationToken token, Action`1 loadAction)
at Terraria.ModLoader.ModContent.Load(CancellationToken token)
at Terraria.ModLoader.ModLoader.Load(CancellationToken token)
Apparently, according to a Google Document about Calamity's errors this type of error is extremely common, and anything that references "AquaticScourgeBody" is a mod incompatability error.