FFXIV no longer recognizing Ctrl+Shift inputs, can't use one of my hotbars anymore

I'm currently unable to use any keybinds which use both Ctrl and Shift. Each of them work fine on their own, but when pressed simultaneously the game detects no input.

The issue has been going on for at least the last couple of days, and has rendered me unable to use one of my hotbars which uses Ctrl+Shift and the 1-6 number keys. I also cannot open my chocobo saddlebag with its default binding.

When attempting to create a keybind which uses both Control and Shift, the box which displays which keys you're pressing turns blank once I start pressing the second of the two.

https://i.imgur.com/r2giai9.png

The issue persists even when using a different keyboard, and a key testing website which displays which keys are being pressed detects both Ctrl and Shift just fine, suggesting that the issue lies with FFXIV. Other things I've tried include restarting my game, restarting my PC, and closing all processes in task manager for Steam, Discord, Nvidia, Razer Synapse, and any other programs or overlays which may have been interfering.


UPDATE - RESOLVED
Problem solved, something was using the keys. Issue does not lie with FFXIV.
Is there really no 'delete post' button?

Are you able to confirm the resolution? I am having the same issue and can't figure out what else could be using those keys.. :(

UPDATE: For me, it seems like the new Shure microphone app runs in the background on PC startup. When I force closed that in the task manager, I could use CTRL+SHIFT+I again. Not sure what is causing this issue in this app specifically.

Good morning! Thank you for posting in the Final Fantasy XIV Technical Support Forums.

We are happy to hear that that your issue has been resolved through the assistance of the SQUARE ENIX Customer Support Team.

This thread will be moved to the 'Closed Concerns' sub forum as a result. Hope to see you online!