Same issue as everyone here, worked perfectly on DX11 wednesday prior to launch, and then, DX11 errors after the patch.
The game works on DX9 but is unstable (freeze, crashes...)
A bit sad because I bought this laptop 1 month ago but hopefully, it will be fixed soon.

Laptop : MSI - GP73 8RE-287XFR Leopard, fixed 120Hz refresh rate

-=-=-=-=-=-=- FFXIV Information -=-=-=-=-=-=-

MyDocument E:\
ProxyEnable 0
ProxyServer unspecified
ProxyOverride unspecified


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 10 Famille 64 bits (6.2, version 9200) (18362.19h1_release.190318-1202)
SYSTEM_CPU Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (12 CPUs), ~2.2GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 12 SYSTEM_CORE_PHYSICS 6
SYSTEM_BIOS E17C5IMS.10D
SYSTEM_LANGUAGE français (Paramètres régionaux*: français)
SYSTEM_MEMORY 8035.941MB
SYSTEM_VIRTUAL_MEMORY 134217727.875MB
SYSTEM_PAGE_FILE 9315.941MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 237.844GB SYSTEM_FREEDISC_SPACE 97.208GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 921.170GB SYSTEM_FREEDISC_SPACE 757.536GB
SYSTEM_STORAGE F:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 10.000GB SYSTEM_FREEDISC_SPACE 4.801GB
SYSTEM_DIRECTX_VERSION DirectX 12
SYSTEM_GRAPHICS Intel(R) UHD Graphics 630
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP Intel(R) UHD Graphics Family
SYSTEM_GRAPHICS_MAKER Intel Corporation
SYSTEM_GRAPHICS_VRAM 128.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM 4017.971 MB
SYSTEM_GRAPHICS_DAC Internal
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (120Hz)
SYSTEM_GRAPHICS_DRIVER C:\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_24de78387e6208e4\igdumdim64.dll,C:\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_24de78387e6208e4\igd10iumd64.dll,C:\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_24de78387e6208e4\igd10iumd64.dll,C:\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_24de78387e6208e4\igd12umd64.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 25.20.0100.6373
SYSTEM_GRAPHICS_DRIVER_DATE 11/18/2018 02:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Anglais
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_GRAPHICS NVIDIA GeForce GTX 1060
SYSTEM_GRAPHICS_DEVICE Unknown
SYSTEM_GRAPHICS_CHIP GeForce GTX 1060
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 10069 MB
SYSTEM_GRAPHICS_SHARED_VRAM SYSTEM_UNKNOWN
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE Unknown
SYSTEM_GRAPHICS_DRIVER C:\Windows\System32\DriverStore\FileRepository\nvmii.inf_amd64_410ce64dd10583c1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmii.inf_amd64_410ce64dd10583c1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmii.inf_amd64_410ce64dd10583c1\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvmii.inf_amd64_410ce64dd10583c1\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 26.21.0014.3086
SYSTEM_GRAPHICS_DRIVER_DATE 5/22/2019 02:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Anglais

SYSTEM_GRAPHICS_PIXEL_SHADER
SYSTEM_GRAPHICS_VERTEX_TEXTURE
SYSTEM_SOUND Haut-parleurs (Realtek(R) Audio)
SYSTEM_SOUND_DEVICE_ID {D3937C12-CD33-4362-9D0C-5C80B8F58B39}
SYSTEM_SOUND_DEVICE_NAME RTKVHD64.sys
SYSTEM_SOUND_DRIVER_VERSION 6.00.8694.0001
SYSTEM_SOUND_DRIVER_LANGUAGE Anglais
SYSTEM_SOUND_DRIVER_DATE 4/30/2019 00:00:00
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Souris
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Clavier
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6ACF1490-8FA6-11E9-8001444553540000}
SYSTEM_INPUT_NAME MSI EPF USB
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {ED9C6E60-907B-11E9-8001444553540000}
SYSTEM_INPUT_NAME SteelSeries Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 265 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {ED9CBC80-907B-11E9-8002444553540000}
SYSTEM_INPUT_NAME Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6ADA3820-8FA6-11E9-8003444553540000}
SYSTEM_INPUT_NAME Radio Switch Device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6ADA3820-8FA6-11E9-8004444553540000}
SYSTEM_INPUT_NAME 2.4G Keyboard Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 897 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6ADA3820-8FA6-11E9-8005444553540000}
SYSTEM_INPUT_NAME 2.4G Keyboard Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6ADA3820-8FA6-11E9-8006444553540000}
SYSTEM_INPUT_NAME 2.4G Keyboard Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0


-=-=-=-=-=-=- Application Information -=-=-=-=-=-=-

SCM
FFXIVLauncher
Realtek Audio Console
Realtek Audio Console
Paramètres
Paramètres
Microsoft Text Input Application
Microsoft Store
Microsoft Store


-=-=-=-=-=-=- Install Information -=-=-=-=-=-=-

Avira Antivirus
Battle.net
Epson Scan 2
Google Chrome
Hearthstone
MSI Feature Navigator
Battery Calibration
Help Desk
MyEpson Portal
Steam
Intel(R) Wireless Bluetooth(R)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501
Avira
Epson Software Updater
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005
Epson Event Manager
MSI Feature Navigator
MyEpson Portal
Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.61030
Logiciel pour périphérique à chipset Intel®
Realtek Card Reader
Microsoft Visual C++ 2017 Redistributable (x86) - 14.13.26020
Google Update Helper
Battery Calibration
Intel(R) Trusted Connect Services Client
Microsoft Visual C++ 2005 Redistributable
Microsoft Visual C++ 2017 Redistributable (x64) - 14.13.26020
Help Desk
Manuels EPSON
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.13.26020
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.13.26020
Adobe Acrobat Reader DC - Français
Microsoft Visual C++ 2012 x86 Additional Runtime - 11.0.61030
Avira
Logiciel Intel® PROSet/Wireless
Microsoft Visual C++ 2012 x86 Minimum Runtime - 11.0.61030
Microsoft VC++ redistributables repacked.
Intel(R) Trusted Connect Service Client x86
Microsoft Visual C++ 2012 Redistributable (x64) - 11.0.61030
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219
Intel(R) Processor Graphics
Realtek High Definition Audio Driver
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005
Microsoft Visual C++ 2008 Redistributable - x86 9.0.21022
KB9X Radio Switch Driver
EPSON XP-452 455 Series Printer Uninstall
Borderlands: The Pre-Sequel
Mordheim: City of the Damned
Borderlands 2
Warhammer: Vermintide 2
MONSTER HUNTER: WORLD
Total War: WARHAMMER II
NEKOPARA Vol. 3
SteelSeries Engine 3.15.1
Synaptics Pointing Device Driver
WinRAR 5.71 (64-bit)
Intel(R) PRO/Wireless Driver
Intel(R) Management Engine Components
Microsoft Visual C++ 2010 x64 Redistributable - 10.0.40219
Microsoft Visual C++ 2017 x64 Minimum Runtime - 14.13.26020
FFXIV TexTools
Intel(R) Rapid Storage Technology
Microsoft Visual C++ 2012 x64 Additional Runtime - 11.0.61030
Intel(R) Rapid Storage Technology
Killer Ethernet Performance Driver Suite
Microsoft VC++ redistributables repacked.
Intel(R) Management Engine Driver
SCM
Intel® PROSet/Wireless WiFi Software
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005
EpsonNet Print
Intel(R) Management Engine Components
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005
Microsoft Visual C++ 2005 Redistributable (x64)
NVIDIA Ansel
NVIDIA Pilote graphique 430.86
NVIDIA GeForce Experience 3.19.0.107
NVIDIA Optimus Update 37.0.0.0
NVIDIA Logiciel système PhysX 9.19.0218
Mises à jour NVIDIA 37.0.0.0
NVIDIA SHIELD Streaming
NVIDIA Pilote audio HD : 1.3.38.16
NVIDIA Install Application
NVIDIA ABHub
NVIDIA Backend
NVIDIA Container
NVIDIA TelemetryApi helper for NvContainer
NVIDIA LocalSystem Container
NVIDIA Message Bus for NvContainer
NVIDIA NetworkService Container
NVAPI Monitor plugin for NvContainer
NVIDIA Session Container
NVIDIA User Container
NVIDIA NodeJS
NVIDIA Watchdog Plugin for NvContainer
NVIDIA Telemetry Client
NVIDIA Telemetry Container
NVIDIA Virtual Host Controller
Nvidia Share
NVIDIA ShadowPlay 3.19.0.107
NVIDIA SHIELD Wireless Controller Driver
NVIDIA Update Core
NVIDIA Virtual Audio 4.13.0.0
LibreOffice 6.2.4.2
Intel(R) Management Engine Components
Microsoft Visual C++ 2017 x64 Additional Runtime - 14.13.26020
Intel(R) Chipset Device Software
Intel(R) Trusted Connect Service Client x64
Microsoft Visual C++ 2012 x64 Minimum Runtime - 11.0.61030


-=-=-=-=-=-=- Proccess Information -=-=-=-=-=-=-

C:\Program Files (x86)\Avira\Antivirus\avgnt.exe 00001878
C:\Program Files (x86)\Avira\Launcher\Avira.Systray.exe 00002CD8
C:\Program Files (x86)\EPSON Software\Event Manager\EEventManager.exe 0000327C
C:\Program Files (x86)\NVIDIA Corporation\NvNode\NVIDIA Web Helper.exe 0000241C
C:\Program Files (x86)\SCM\SCM.exe 000032E0
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot\ffxivlauncher64.exe 00001D7C
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot\ffxivsysinfo64.exe 00001100
C:\Program Files\Intel\Intel(R) Rapid Storage Technology\IAStorIcon.exe 00003798
C:\Program Files\NVIDIA Corporation\NvContainer\nvcontainer.exe 000011B4
C:\Program Files\SteelSeries\SteelSeries Engine 3\SteelSeriesEngine3.exe 00000D48
C:\Program Files\WindowsApps\Microsoft.WindowsStore_11905.1001.4.0_x64__8wekyb3d8bbwe\WinStore.App.exe 0000033C
C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_3.30.12001.0_x64__8wekyb3d8bbwe\GameBar.exe 00003414
C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_3.30.12001.0_x64__8wekyb3d8bbwe\GameBarFT.exe 000031F8
C:\Program Files\WindowsApps\RealtekSemiconductorCorp.RealtekAudioControl_1.2.168.0_x64__dt26b99r8h8gj\RtkUWP.exe 0000216C
C:\Windows\Explorer.EXE 000006DC
C:\Windows\ImmersiveControlPanel\SystemSettings.exe 00002FB4
C:\Windows\System32\DriverStore\FileRepository\igdlh64.inf_amd64_24de78387e6208e4\igfxEM.exe 000024D4
C:\Windows\System3
2\RtkAudUService64.exe 00002358
C:\Windows\System32\RuntimeBroker.exe 000005E8
C:\Windows\System32\SecurityHealthSystray.exe 000032C0
C:\Windows\System32\SynTPEnh.exe 000019C4
C:\Windows\System32\smartscreen.exe 00003268
C:\Windows\System32\spool\drivers\x64\3\E_YATIVAE.EXE 00003330
C:\Windows\System32\svchost.exe 00002418
C:\Windows\SystemApps\InputApp_cw5n1h2txyewy\WindowsInternal.ComposableShell.Experiences.TextInput.InputApp.exe 00003354
C:\Windows\SystemApps\Microsoft.LockApp_cw5n1h2txyewy\LockApp.exe 0000126C
C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe 00001304
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe 0000290C
C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe 00001694
C:\Windows\system32\ApplicationFrameHost.exe 00002854
C:\Windows\system32\DllHost.exe 000023D0
C:\Windows\system32\conhost.exe 0000072C
C:\Windows\system32\sihost.exe 000013F0
C:\Windows\system32\svchost.exe 00003430
C:\Windows\system32\taskhostw.exe 000026D0