Meta has unveiled its new Ray-Ban Display smart glasses, but a subtle rebrand and a failed demo have highlighted broader concerns about privacy. Meta later confirmed that a “race condition” bug—a clash in timing and system resources—caused the failure. The recording indicators are very small, making it difficult for bystanders to know when the glasses are filming. But the launch emphasized the ongoing challenge: balancing innovation with reliability, public safety, and privacy. Even a small change can reveal larger issues that still need careful attention.