Core/DungeonFinder:

- Corrections to c6c23b7f7e: Properly fixed #6748 after misunderstanding the issue.
- Display proper error message when teleportating as fatigued

src/server/game/DungeonFinding/LFGMgr.cpp

@@ -1431,6 +1431,7 @@ void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
             Group* group = player->GetGroup();
             if (sendUpdate)
                 player->GetSession()->SendLfgUpdateProposal(proposalId, pProposal);
+
             if (group)
             {
                 player->GetSession()->SendLfgUpdateParty(updateData);
@@ -1482,6 +1483,7 @@ void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
                     break;
                 }
             }
+
             m_teleport.push_back(pguid);
             grp->SetLfgRoles(pguid, pProposal->players[pguid]->role);
             SetState(pguid, LFG_STATE_DUNGEON);
@@ -1749,14 +1751,7 @@ void LFGMgr::UpdateBoot(Player* player, bool accept)
 void LFGMgr::TeleportPlayer(Player* player, bool out, bool fromOpcode /*= false*/)
 {
     sLog->outDebug(LOG_FILTER_LFG, "LFGMgr::TeleportPlayer: [" UI64FMTD "] is being teleported %s", player->GetGUID(), out ? "out" : "in");
-    if (out)
-    {
-        player->RemoveAurasDueToSpell(LFG_SPELL_LUCK_OF_THE_DRAW);
-        player->TeleportToBGEntryPoint();
-        return;
-    }
 
-    // TODO Add support for LFG_TELEPORTERROR_FATIGUE
     LfgTeleportError error = LFG_TELEPORTERROR_OK;
     Group* grp = player->GetGroup();
 
@@ -1766,13 +1761,25 @@ void LFGMgr::TeleportPlayer(Player* player, bool out, bool fromOpcode /*= false*
         error = LFG_TELEPORTERROR_PLAYER_DEAD;
     else if (player->IsFalling() || player->HasUnitState(UNIT_STATE_JUMPING))
         error = LFG_TELEPORTERROR_FALLING;
+    else if (player->IsMirrorTimerActive(FATIGUE_TIMER))
+        error = LFG_TELEPORTERROR_FATIGUE;
     else
     {
-        uint64 gguid = grp->GetGUID();
+        LFGDungeonEntry const* dungeon = sLFGDungeonStore.LookupEntry(GetDungeon(grp->GetGUID()));
-        LFGDungeonEntry const* dungeon = sLFGDungeonStore.LookupEntry(GetDungeon(gguid));
 
-        if (GetState(gguid) == LFG_STATE_FINISHED_DUNGEON)
+        if (out)
-            error = LFG_TELEPORTERROR_INVALID_LOCATION;
+        {
+            // Player needs to be inside the LFG dungeon to be able to teleport out
+            if (dungeon && player->GetMapId() == uint32(dungeon->map))
+            {
+                player->RemoveAurasDueToSpell(LFG_SPELL_LUCK_OF_THE_DRAW);
+                player->TeleportToBGEntryPoint();
+            }
+            else
+                player->GetSession()->SendLfgTeleportError(LFG_TELEPORTERROR_DONT_REPORT); // Not sure which error message to send
+
+            return;
+        }
 
         if (!dungeon)
             error = LFG_TELEPORTERROR_INVALID_LOCATION;

src/server/game/DungeonFinding/LFGMgr.h

@@ -68,6 +68,7 @@ enum LfgTeleportError
     LFG_TELEPORTERROR_OK                         = 0,      // Internal use
     LFG_TELEPORTERROR_PLAYER_DEAD                = 1,
     LFG_TELEPORTERROR_FALLING                    = 2,
+    LFG_TELEPORTERROR_DONT_REPORT                = 3,
     LFG_TELEPORTERROR_FATIGUE                    = 4,
     LFG_TELEPORTERROR_INVALID_LOCATION           = 6
 };

src/server/game/Entities/Player/Player.h

@@ -1970,6 +1970,7 @@ class Player : public Unit, public GridObject<Player>
             StopMirrorTimer(BREATH_TIMER);
             StopMirrorTimer(FIRE_TIMER);
         }
+        bool IsMirrorTimerActive(MirrorTimerType type) { return m_MirrorTimer[type] == getMaxTimer(type); }
 
         void SetMovement(PlayerMovementType pType);