Your iPhone might have restrictions enabled that prevent it from initiating screen recording. Follow these steps to fix this - 1. Open "Settings" on your iPhone, and locate & tap the "Screen Time" tab in the settings menu. 2. Now, open "Content & Privacy Restrictions" and tap "Content Restrictions" to see the complete list of restrictions that can be allowed or denied. 3. Here, scroll down until you find "Screen Recoding," and allow it if it isn't already.