It's good that you're finally agreeing with me! I said in my very first post this appeared to be a problem with OpenGL implementation in the driver, to which you replied that it was not a problem.
Well we have been agreeing on the same thing since the beginning regarding the problem: the driver.
It is just I dont see RTG trying to improve the driver for this specific benchmark. It takes money and human resources to improve OpenGL for GCN, per application. That is where the beauty of Vulkan and DX12 shine---no need to do per application optimization.
So yeah, OpenGL performance is kinda irrelevant as long as the application has proper Vulkan or DX12 implementation.
So even after an update that really didn't fix anything of great significance I still get an error when trying to run it in Vulcan and still see it lock up at 99% under OpenGL although the experience mode works fine in OpenGL but fails to even attempt to run in Vulcan mode so I've come to the conclusion that this benchmark app is poorly coded and a complete waste of time and probably shouldn't have been let out of the stable door until it worked properly on everything they seem to think it should work on
The problem maybe on both end. I did some digging with debugging tool. The problem seems to stem from both RTG's driver as well as the benchmark. The 18.6.1 driver has Vulkan 1.1.73 while this benchmark is still on Vulkan 1.0.