Object.cpp:292 ASSERTION FAILED:
  !((Player*)this)->GetMotionMaster()->empty() && ((Player*)this)->GetMotionMaster()->top()->GetMovementGeneratorType() == FLIGHT_MOTION_TYPE
mangos-worldd: Object.cpp:292: void Object::_BuildMovementUpdate(ByteBuffer*, uint8, uint32) const: Assertion `"!((Player*)this)->GetMotionMaster()->empty() && ((Player*)this)->GetMotionMaster()->top()->GetMovementGeneratorType() == FLIGHT_MOTION_TYPE" &&0' failed.

Program received signal SIGABRT, Aborted.
[Switching to Thread -1362101328 (LWP 14018)]
0xb7fd1410 in ?? ()
(gdb) bt
#0  0xb7fd1410 in ?? ()
#1  0xaecfec28 in ?? ()
#2  0x00000006 in ?? ()
#3  0xb794bfb9 in abort () from /lib/tls/i686/cmov/libc.so.6
#4  0xb7943fbf in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#5  0x08168637 in Object::_BuildMovementUpdate (this=0x676be438, data=0xaecfee58, flags=112 'p', flags2=<value optimized out>) at Object.cpp:292
#6  0x08168a1c in Object::BuildCreateUpdateBlockForPlayer (this=0x676be438, data=0xaecfeec4, target=0x8ddb7a20) at Object.cpp:193
#7  0x081669e8 in Object::SendUpdateToPlayer (this=0x676be438, player=0x8ddb7a20) at Object.cpp:218
#8  0x081bd952 in Player::UpdateVisibilityOf (this=0x8ddb7a20, target=0x676be438) at Player.cpp:15890
#9  0x082f9def in MaNGOS::PlayerNotifier::Visit (this=0xaecff164, m=@0x16419908) at GridNotifiers.cpp:40
#10 0x0813c261 in VisitorHelper<MaNGOS::PlayerNotifier, Player, TypeList<Creature, TypeList<Corpse, TypeNull> > > (v=@0xaecff164, c=@0x16419908)
    at ./../framework/GameSystem/TypeContainerVisitor.h:70
#11 0x08141ff0 in Cell::Visit<RGuard<ZThread::FairReadWriteLock, ZThread::Lockable>, MaNGOS::PlayerNotifier, TypeMapContainer<TypeList<Player, TypeList<Creature, TypeList<Corpse, TypeNull> > > > > (this=0xaecff1b4, l=@0xaecff158, visitor=@0xaecff160, m=@0x14b7e9a0)
    at ./../framework/GameSystem/TypeContainerVisitor.h:105
#12 0x08136bbb in Map::UpdatePlayerVisibility (this=0x14b7e9a0, player=0x8ddb7a20, cell=@0xaecff1b4, cellpair=@0xaecff1a0) at Map.cpp:1325
#13 0x08137699 in Map::Add (this=0x14b7e9a0, player=0x8ddb7a20) at Map.cpp:638
#14 0x0834b7a3 in WorldSession::HandleMoveWorldportAckOpcode (this=0xaedd0fc0) at MovementHandler.cpp:56
#15 0x082959aa in WorldSession::Update (this=0xaedd0fc0) at WorldSession.cpp:576
#16 0x08288a57 in World::UpdateSessions (this=0x85c43b8, diff=579) at World.cpp:1919
#17 0x0828f781 in World::Update (this=0x85c43b8, diff=579) at World.cpp:980
#18 0x080f4e9b in WorldRunnable::run (this=0xaf79f368) at WorldRunnable.cpp:61
#19 0xb7ba5e29 in ZThread::ThreadImpl::dispatch (parent=0x85a14e0, impl=0xaf86fcf8, task=@0xaecff424) at ThreadImpl.cxx:407
#20 0xb7ba8494 in ZThread::(anonymous namespace)::Launcher::run (this=0xbfa8c30c) at ThreadImpl.cxx:49
#21 0xb7babf5c in _dispatch (arg=0x6) at posix/ThreadOps.cxx:137
#22 0xb7b6e240 in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#23 0xb79ed49e in clone () from /lib/tls/i686/cmov/libc.so.6