Misc fixes

Source/Game/BattleGrounds/BattleGround.cs

@@ -1629,6 +1629,12 @@ namespace Game.BattleGrounds
         // buffs are in their positions when Battleground starts
         public void HandleTriggerBuff(ObjectGuid goGuid)
         {
+            if (!FindBgMap())
+            {
+                Log.outError(LogFilter.Battleground, $"Battleground::HandleTriggerBuff called with null bg map, {goGuid}");
+                return;
+            }
+
             GameObject obj = GetBgMap().GetGameObject(goGuid);
             if (!obj || obj.GetGoType() != GameObjectTypes.Trap || !obj.IsSpawned())
                 return;

Source/Game/Entities/Creature/CreatureGroups.cs

@@ -288,7 +288,7 @@ namespace Game.Entities
                 float angle = pair.Value.FollowAngle + MathF.PI; // for some reason, someone thought it was a great idea to invert relativ angles...
                 float dist = pair.Value.FollowDist;
 
-                if (!member.HasUnitState(UnitState.Formation))
+                if (!member.HasUnitState(UnitState.FollowFormation))
                     member.GetMotionMaster().MoveFormation(_leader, dist, angle, pair.Value.LeaderWaypointIDs[0], pair.Value.LeaderWaypointIDs[1]);
             }
         }

Source/Game/Globals/ObjectManager.cs

@@ -2823,6 +2823,11 @@ namespace Game
             }
 
             cInfo.ModDamage *= Creature._GetDamageMod(cInfo.Rank);
+
+            if (cInfo.GossipMenuId != 0 && !cInfo.Npcflag.HasAnyFlag((ulong)NPCFlags.Gossip))
+                Log.outInfo(LogFilter.Sql, $"Creature (Entry: {cInfo.Entry}) has assigned gossip menu {cInfo.GossipMenuId}, but npcflag does not include UNIT_NPC_FLAG_GOSSIP.");
+            else if (cInfo.GossipMenuId == 0 && cInfo.Npcflag.HasAnyFlag((ulong)NPCFlags.Gossip))
+                Log.outInfo(LogFilter.Sql, $"Creature (Entry: {cInfo.Entry}) has npcflag UNIT_NPC_FLAG_GOSSIP, but gossip menu is unassigned.");
         }
         void CheckCreatureMovement(string table, ulong id, CreatureMovementData creatureMovement)
         {

Source/Game/Maps/Map.cs

@@ -5121,7 +5121,7 @@ namespace Game.Maps
         public delegate void FarSpellCallback(Map map);
         Queue<FarSpellCallback> _farSpellCallbacks = new();
 
-        MultiPersonalPhaseTracker _multiPersonalPhaseTracker;
+        MultiPersonalPhaseTracker _multiPersonalPhaseTracker = new();
         #endregion
     }
 

Source/Game/Spells/SpellInfo.cs

@@ -1710,6 +1710,24 @@ namespace Game.Spells
             switch (SpellFamilyName)
             {
                 case SpellFamilyNames.Generic:
+                    // Frost Tomb
+                    if (Id == 48400)
+                        return DiminishingGroup.None;
+                    // Gnaw
+                    else if (Id == 47481)
+                        return DiminishingGroup.Stun;
+                    // ToC Icehowl Arctic Breath
+                    else if (Id == 66689)
+                        return DiminishingGroup.None;
+                    // Black Plague
+                    else if (Id == 64155)
+                        return DiminishingGroup.None;
+                    // Screams of the Dead (King Ymiron)
+                    else if (Id == 51750)
+                        return DiminishingGroup.None;
+                    // Crystallize (Keristrasza heroic)
+                    else if (Id == 48179)
+                        return DiminishingGroup.None;
                     break;
                 case SpellFamilyNames.Mage:
                 {