Problem with "My Little Chocobo" Achievement

[NeoEden]

Time: I don't remember exactly when it was.
Frequency: once.
World name: Ragnarok.
Character name: Neoeden Nereruo.
NPC name: "Cyngur"
Monster name: no monster for this issue.
Class/Level: I was ACN level 20.
Party or solo: solo
In-game time: as Earth time, i don't remember it
Area and coordinates: New Gridania (11,12)
Steps:
1. I've used the Chocobo Whistle (gained through the transfert from v1.0)
2. I've done the quest "My Little Chocobo (Twin Adder) and it is recorded in the achievement log.
3. I can summon all the mounts and I can also summon my Chocobo to battle with me in open areas but the Achievement is still locked.

Connection Specs
- Type of internet connection/provider: ADSL 7MB, Telecom Italia S.p.A.
- Modem maker/model number: Alice Gate VoIP 2 Plus Wi-Fi

PC Specs
-=-=-=-=- System Information -=-=-=-=-
SYSTEM_OS Windows 7 Professional 32 bit (6.1, build 7601) Service Pack 1 (7601.win7sp1_gdr.130828-1532)
SYSTEM_CPU Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz (2 CPUs), ~2.9GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 2 SYSTEM_CORE_PHYSICS 2
SYSTEM_BIOS BIOS Date: 08/05/09 16:33:17 Ver: 08.00.14
SYSTEM_LANGUAGE italiano (Impostazioni internazionali: italiano)
SYSTEM_MEMORY 3327.117MB
SYSTEM_VIRTUAL_MEMORY 2047.875MB
SYSTEM_PAGE_FILE 6652.523MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 108.803GB SYSTEM_FREEDISC_SPACE 73.350GB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 82.000GB SYSTEM_FREEDISC_SPACE 78.186GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 41.983GB SYSTEM_FREEDISC_SPACE 41.893GB
SYSTEM_STORAGE H:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 931.503GB SYSTEM_FREEDISC_SPACE 332.214GB
SYSTEM_DIRECTX_VERSION DirectX 11
SYSTEM_GRAPHICS AMD Radeon HD 5700 Series
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP AMD Radeon Graphics Processor (0x68B8)
SYSTEM_GRAPHICS_MAKER Advanced Micro Devices, Inc.
SYSTEM_GRAPHICS_VRAM 1018.582 MB
SYSTEM_GRAPHICS_SHARED_VRAM 1407.559 MB
SYSTEM_GRAPHICS_DAC Internal DAC(400MHz)
SYSTEM_GRAPHICS_DISPLAY_MODE 1600 x 900 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER aticfx32.dll,aticfx32.dll,aticfx32.dll,atiumdag.dll,atidxx32.dll,atiumdva.cap
SYSTEM_GRAPHICS_DRIVER_VERSION 8.17.0010.1247
SYSTEM_GRAPHICS_DRIVER_DATE 07/12/2013 00:00:42
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Inglese
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_GRAPHICS AMD Radeon HD 5700 Series
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY2
SYSTEM_GRAPHICS_CHIP AMD Radeon Graphics Processor (0x68B8)
SYSTEM_GRAPHICS_MAKER Advanced Micro Devices, Inc.
SYSTEM_GRAPHICS_VRAM 1018.582 MB
SYSTEM_GRAPHICS_SHARED_VRAM 1407.559 MB
SYSTEM_GRAPHICS_DAC Internal DAC(400MHz)
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER aticfx32.dll,aticfx32.dll,aticfx32.dll,atiumdag.dll,atidxx32.dll,atiumdva.cap
SYSTEM_GRAPHICS_DRIVER_VERSION 8.17.0010.1247
SYSTEM_GRAPHICS_DRIVER_DATE 07/12/2013 00:00:42
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Inglese
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND Altoparlanti (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {6A25F5ED-A29C-4A7F-ADFF-349A05919903}
SYSTEM_SOUND_DEVICE_NAME RTKVHDA.sys
SYSTEM_SOUND_DRIVER_VERSION 6.00.0001.5859
SYSTEM_SOUND_DRIVER_LANGUAGE Inglese
SYSTEM_SOUND_DRIVER_DATE 22/05/2009 20:03:40
SYSTEM_SOUND Headset (Sound Blaster Tactic(3D) Alpha)
SYSTEM_SOUND_DEVICE_ID {3BFBA620-A083-4041-B24A-F1DAF75B0F84}
SYSTEM_SOUND_DEVICE_NAME USBAUDIO.sys
SYSTEM_SOUND_DRIVER_VERSION 6.01.7601.18208
SYSTEM_SOUND_DRIVER_LANGUAGE Inglese
SYSTEM_SOUND_DRIVER_DATE 12/07/2013 12:07:52
SYSTEM_SOUND Realtek Digital Output (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {B3D3933A-7A3D-409E-B55C-D5A620A072F0}
SYSTEM_SOUND_DEVICE_NAME RTKVHDA.sys
SYSTEM_SOUND_DRIVER_VERSION 6.00.0001.5859
SYSTEM_SOUND_DRIVER_LANGUAGE Inglese
SYSTEM_SOUND_DRIVER_DATE 22/05/2009 20:03:40
SYSTEM_SOUND Realtek Digital Output(Optical) (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {F5E65296-A06B-4E13-AC72-F2F97921EF56}
SYSTEM_SOUND_DEVICE_NAME RTKVHDA.sys
SYSTEM_SOUND_DRIVER_VERSION 6.00.0001.5859
SYSTEM_SOUND_DRIVER_LANGUAGE Inglese
SYSTEM_SOUND_DRIVER_DATE 22/05/2009 20:03:40
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Tastiera
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {3852DE40-AD0A-11E3-8001444553540000}
SYSTEM_INPUT_NAME Sound Blaster Tactic(3D) Alpha
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 1 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {385C2D10-AD0A-11E3-8002444553540000}
SYSTEM_INPUT_NAME Sound Blaster Tactic(3D) Alpha
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {385C2D10-AD0A-11E3-8003444553540000}
SYSTEM_INPUT_NAME Mouse USB hardware Microsoft
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 4 SYSTEM_GAMEPAD_BUTTON 1025 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {3862BCC0-AD0A-11E3-8004444553540000}
SYSTEM_INPUT_NAME Gaming Keyboard G110
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 7 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {3864B890-AD0A-11E3-8005444553540000}
SYSTEM_INPUT_NAME Gaming Keyboard G110
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {3864DFA0-AD0A-11E3-8006444553540000}
SYSTEM_INPUT_NAME G110 G-keys
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {38652DC0-AD0A-11E3-8007444553540000}
SYSTEM_INPUT_NAME G110 G-keys
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Browser Information
- Name and version of the browser currently in-use: Mozzilla Firefox 28.0
- Internet Explorer Version: 11.0.9600.17105 (update version: 11.0.7 KB2964358)

[NinjaDante]

I have the same issue and circumstance being from 1.0