To obtain the patch, you can try the following:

: Later patches fixed issues where HEVC files from iPhone 7/8 and specific Panasonic GH5 footage (5K/6K) would show black frames or not scale correctly on the timeline.

Build 177 focused heavily on modernizing the user interface and improving hardware utilization: Modern UI & Customization:

Modern NVIDIA GeForce or AMD Radeon card with dedicated VRAM for hardware rendering.

Implementing the right patches for Build 177 unlocks a highly stable, lightweight editing environment. Here is a comprehensive look at why this specific version remains relevant, what the patches fix, and how to optimize it for modern workflows. The History and Appeal of Vegas Pro 15 Build 177

When MAGIX took over the reins of the popular editing software formerly known as Sony Vegas, they focused on modernizing the workflow and maximizing hardware potential. The (often referred to in the context of the MAGIX, not Sony, era) was a pivotal update. It was specifically engineered to fix initial stability issues and deliver significant performance improvements that made editing faster, smoother, and more efficient than earlier versions.