Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

What is your graphics card? The FFXIV system report only lists it as 'AMD Radeon R9 200 Series'. Additionally, what driver version do you have? The report says your driver date is 5/16/2018, which I'm not sure is accurate if you installed the latest driver.

When you reinstalled the game, did you delete the locally saved files from the 'My Documents' folder(My Documents > My Games > Final Fantasy XIV)? If not, try deleting those and loading into your character.

I'd also suggest a clean boot. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game. Additionally, it looks like it's triggered by opening other programs. Avoid doing this if you can.

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!