No, only when using Resolume. I left Alley open when I converted the clip to DXV, it crashed at the same time with Arena while running the last test.
FurMark ran for more than 20hrs while testing solely the GPU.
I am currently running the same test composition with main display resolution set to FHD (it was 2560x1440) to see if it will make any difference.
I am also attaching screenshots of task manager and BlueInfo screens while the composition is playing, in case it is needed.