Build 270 was designed to improve stability, handle higher video velocities, and better support 4K workflows and RED cameras. Despite these improvements, the patching process itself can get stuck, which is commonly attributed to: Interrupted installation processes. Background processes interfering with file replacements.
Before fixing the problem, we must define it. A "stall" in Vegas Pro 14.0.0 Build 270 is distinct from a crash or a slow render. A stall occurs when:
If you'd like to narrow down the issue further, let me know: The exact where the installer stops.