I recorded a 20 minute session with my iPhone 11 Pro running ios 18.1.1. It was in 4K however, my phone had 130GB of free space! Halfway along the recording it displayed the error that my storage was full, and that recording stopped. I then proceeded to go to settings and check the storage, still 127 GB free. I have iCloud photos on, and my media is syncing.
DaniVisuals
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