that link you tried to post is a local file specific to your computer only. you have to actually upload the image somewhere and link to it or attach it directly to your post (but you probably cant attach files directly with your post count)
I likely cant know exactly what your issue is from that anyway better to post information from the applog than to show a screenshot of the game for crashing issues.
I know FFNx adds its own shaders, but I dont know if there is a way to add your own custom ones and have the game use them automatically.
Okay I couldn't find anything unusual/any problems in the applog, but here is the picture of what happened:
https://www.youtube.com/channel/UCISga0t8g1pZ80UsZugTitA. I tried everything I could, disabling mods, changing driver and launcher settings, clearing the texture cache, but nothing seemed to work.