Hi! Thanks for reaching out about the Blackmagic Camera app recording issues on your iPhone with the latest iOS. I want to understand a bit more first—are you experiencing the problem where recording won’t start at all, or does it start and then immediately stop? Also, is this happening consistently with all recordings or just some files/settings?

From similar reports, some users have faced recording failures and interruptions with recent iOS versions and Blackmagic Camera app updates. For example, there were known issues where recording would fail in specific cases related to newer iOS versions, which Blackmagic addressed in recent app updates like version 3.1.2. That update also added features like Open Gate recording with Apple Log but focused on fixing those recording hiccups2 8.

To help you further, let's try a step-by-step approach:

1. Update the App: Ensure your Blackmagic Camera app is updated to the latest version (3.1.2 or newer). This update has fixes aimed specifically at recording failures on recent iOS versions.

2. Restart Your iPhone: Sometimes a fresh restart clears minor conflicts.

3. Check Storage Space: Make sure you have ample free storage; insufficient space can cause the recording to stop unexpectedly.

4. App Permissions: Go to Settings > Privacy > Camera and Microphone and confirm Blackmagic Camera has permission to access both.

5. Reset App Settings: Within the app, if there’s an option to reset settings to default, try that. Custom settings, especially for ProRes RAW or external drives, could cause issues.

6. Test Recording in Different Settings: Try recording with basic settings (non-ProRes, default resolution) to check if the problem persists.

7. Inspect External Drives: If you’re using external SSDs (like Samsung T7), disconnect them temporarily and test recording directly to your iPhone storage, as sometimes the app has issues with some external drives 1.

If after these steps the problem remains, there might be more advanced troubleshooting or temporary workarounds we can look into. Let me know what you’ve tried so far or any error messages you see, and I’ll assist you further!

Are you satisfied with the solution I provided so far?