Extra Mouse Buttons (4,5) not working anymore since 5.3

When submitting a bug report, please use the below template and thoroughly fill out the necessary information.

Date & Time: 22.08.2020, 3:00 pm
Frequency: all the time
World name: Louisoix
Character name: Shae N'arnon
Retainer name: -/-
NPC name: -/-
Monster name: -/-
Class/Level: Dancer, 80
Party or solo: solo
In-game time: 3:03 pm
Area and coordinates: everywhere
Housing: -/-
Steps:
1. Pressed mouse buttons 4 (bound to mount on hotbar) and 5 (auto-run)
2. Nothing happened
3. Checked the Keybind settings: mouse buttons still assigned to their respective action
4. Tried re-assigning the mouse buttons, but it doesn't work - as if the game doesn't recognize the buttons at all
5. Tried restarting the game (multiple times) and my computer (multiple times)
6. Drivers are up to date
7. The problem started after updating to 5.3
8. Using a Logitech MX Performance Mouse


Connection Specs
- Type of internet connection/provider: DSL, Unitymedia
- Modem maker/model number: Connect Box by Unitymedia

■ PC Specs

To obtain the system information, open the FFXIV launcher and select Config → System Information → Display.

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

SYSTEM_OS Windows 10 Home 64-Bit-Version (6.2, Build 9200) (19041.vb_release.191206-1406)
SYSTEM_CPU Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz (6 CPUs), ~2.8GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 6 SYSTEM_CORE_PHYSICS 6
SYSTEM_BIOS 370H4W0X.202
SYSTEM_LANGUAGE Deutsch (Gebietsschema: Deutsch)
SYSTEM_MEMORY 12172.887MB
SYSTEM_VIRTUAL_MEMORY 134217727.875MB
SYSTEM_PAGE_FILE 12372.887MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 117.152GB SYSTEM_FREEDISC_SPACE 62.773GB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 906.512GB SYSTEM_FREEDISC_SPACE 181.320GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 25.000GB SYSTEM_FREEDISC_SPACE 6.483GB
SYSTEM_DIRECTX_VERSION DirectX 12
SYSTEM_GRAPHICS NVIDIA GeForce GTX 1050
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 1050
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 1977.367 MB
SYSTEM_GRAPHICS_SHARED_VRAM 6086.443 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER C:\WINDOWS\System32\DriverStore\FileRepository\nvmoi.inf_amd64_ff28662cd947f10e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmoi.inf_amd64_ff28662cd947f10e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmoi.inf_amd64_ff28662cd947f10e\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmoi.inf_amd64_ff28662cd947f10e\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 26.21.0014.4587
SYSTEM_GRAPHICS_DRIVER_DATE 4/3/2020 02:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Englisch
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_GRAPHICS Intel(R) UHD Graphics 630
SYSTEM_GRAPHICS_DEVICE Unknown
SYSTEM_GRAPHICS_CHIP Intel(R) UHD Graphics Family
SYSTEM_GRAPHICS_MAKER Intel Corporation
SYSTEM_GRAPHICS_VRAM 6214 MB
SYSTEM_GRAPHICS_SHARED_VRAM SYSTEM_UNKNOWN
SYSTEM_GRAPHICS_DAC Internal
SYSTEM_GRAPHICS_DISPLAY_MODE Unknown
SYSTEM_GRAPHICS_DRIVER C:\WINDOWS\System32\DriverStore\FileRepository\igdlh64.inf_amd64_bdd37d808cfdf045\igdumdim64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\igdlh64.inf_amd64_bdd37d808cfdf045\igd10iumd64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\igdlh64.inf_amd64_bdd37d808cfdf045\igd10iumd64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\igdlh64.inf_amd64_bdd37d808cfdf045\igd12umd64.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 27.20.0100.7989
SYSTEM_GRAPHICS_DRIVER_DATE 6/5/2020 02:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE Englisch

SYSTEM_GRAPHICS_PIXEL_SHADER
SYSTEM_GRAPHICS_VERTEX_TEXTURE
SYSTEM_SOUND DM2780D (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {2439D371-1224-42D0-A1B7-174C82D0D2C0}
SYSTEM_SOUND_DEVICE_NAME nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION 1.3.38.26
SYSTEM_SOUND_DRIVER_LANGUAGE Englisch
SYSTEM_SOUND_DRIVER_DATE 2/18/2020 02:00:00
SYSTEM_SOUND Speakers (Realtek High Definition Audio)
SYSTEM_SOUND_DEVICE_ID {222C8767-8B40-48DD-9029-56AE925C298A}
SYSTEM_SOUND_DEVICE_NAME RTKVHD64.sys
SYSTEM_SOUND_DRIVER_VERSION 6.0.1.8237
SYSTEM_SOUND_DRIVER_LANGUAGE Englisch
SYSTEM_SOUND_DRIVER_DATE 8/22/2017 02:00:00
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Maus
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 8 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Tastatur
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 128 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8001444553540000}
SYSTEM_INPUT_NAME Cordless Device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 652 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8002444553540000}
SYSTEM_INPUT_NAME Cordless Receiver뚏Y
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8003444553540000}
SYSTEM_INPUT_NAME Cordless Device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8004444553540000}
SYSTEM_INPUT_NAME USB Receiver
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 767 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8005444553540000}
SYSTEM_INPUT_NAME Cordless Keyboard뚏Y
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 652 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {A8F43B00-9CD7-11E8-8006444553540000}
SYSTEM_INPUT_NAME USB Receiver
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {C2E884B0-A6C0-11E8-8001444553540000}
SYSTEM_INPUT_NAME Cordless Keyboard뚏Y
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {F3952910-CA64-11E9-8001444553540000}
SYSTEM_INPUT_NAME USB Receiver
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {F3955020-CA64-11E9-8002444553540000}
SYSTEM_INPUT_NAME Cordless Receiver뚏Y
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


Laptop Model Name: -/-
Laptop Model Number: -/-

Gamepad Manufacturer: -/-
Gamepad Model Name: -/-
Gamepad Part Number: -/-

Browser Information
- Name and version of the browser currently in-use: FireFox
- Internet Explorer Version: -/-

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■ PS4 Specs

Model Number of the PlayStation®4 You Are Using
- Model Number: -/-

Model Number of the PlayStation®Vita You Are Using
- Model Number: -/-

Information About the Peripherals You Are Using
-Type: -/-
-Maker: -/-
-Model Number: -/-