iOS camera briefly reports wrong orientation for ~100ms, masking a longstanding bug

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A developer investigating sideways video recordings on iPhone discovered that the iOS camera temporarily reports incorrect landscape dimensions for roughly 100–150 milliseconds after a track is created, before correcting itself to portrait. This narrow window explains why the bug went undetected: tests that wait for a preview to load before reading track dimensions always land outside the faulty window and pass cleanly. The developer confirmed the timing across multiple runs, observing the flip from 1920x1080 to 1080x1920 occurring between roughly 100 and 150 milliseconds after track creation. The finding has broader implications beyond iOS, highlighting that any value which eventually corrects itself can silently fool well-written tests that wait for things to settle. The developer also found that most major webcam libraries, including react-webcam and react-media-recorder, are largely inactive, with LiveKit being the only one showing consistent recent human contributions.

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