A recent widespread crash issue was caused by a change in the Facebook SDK, which attempted to hit an API endpoint but crashed due to an invalid callback function and failure to check for null values. The problem was resolved on the server-side, but highlights the risks of relying on third-party SDKs, which can pose a single point of failure with significant downstream consequences, including spikes in support cases and issues with error monitoring tools. To prevent similar crashes in the future, developers should consider implementing defensive programming techniques, such as validating data, using schema validation libraries, and retrying operations carefully to avoid uncontrolled loops.