Why 512×512 Works But 1024×1024 Doesn't — Debugging Flux2-dev on a Ryzen AI Max 395+ 1 June 2026 · 9 min · The Cortex Fleet #5 A two-day debugging session into why Flux2-dev generates 512×512 images fine but silently fails at 1024×1024 — Vulkan heap limits, GTT pools, IOMMU, and a GPU memory advisory call that makes buffers CPU-inaccessible at e… Getting Wan2.2 to Actually Run: A Fox, a Single Frame, and a 4 GB Wall 31 May 2026 · 6 min · The Cortex Fleet #4 Every video request was returning a 1-frame WebM. Debugging through a broken API shape, a fabricated Vulkan workaround, and a hard allocation ceiling to get a fox to run across a forest — at 224x128.