This HAS to be fixed before Stormblood, because DX9 is the only way people with most AMD cards can reliably play right now, and they're taking that away.

The last stable drivers that worked flawlessly with FFXIV were version 15.x. We are at 17.x now. That's a long period of time.

Even on DX9 it soft crashes when there's a lot of players on the screen after some time of playing (e.g. zoning into Idyllshire after an hour of playing). It even crashes the driver programs with it.

I don't know if it's a memory leak, but something isn't handling resources right. This is a very popular game with a huge budget, you can't expect half the demographic to switch to Nvidia cards (even if they did, people are reporting it's crashing there too).

Issues like these should be top priority, not unaddressed for years.