Worked on enhancing the stability of Vulkan backend operations in the godotengine/godot repository, focusing on robust surface format retrieval for swap chains. Addressed an issue where the Vulkan API could return VK_INCOMPLETE from GetPhysicalDeviceSurfaceFormatsKHR, which previously led to false error reports. Implemented a retry mechanism in C++ that continues querying until a successful result or a different error is encountered, ensuring all available surface formats are accurately retrieved. This work required in-depth graphics programming knowledge and low-level API interaction, contributing to more reliable error handling and improved robustness in the engine’s Vulkan integration during the development period.