Hi! I understand you’re having trouble where only certain movies play on the Tubi app on your iPhone. Let’s see if we can get this sorted out together.

To start, can you tell me if:
- You get any error messages when trying to play those movies that don’t work?
- Does the problem happen with specific titles only, or a whole category of movies?
- Are you connected to Wi-Fi or cellular data when this happens?

Meanwhile, here are some quick steps tailored for your iPhone (iOS 18.7) to try out:

1. Restart the Tubi app: Fully close the Tubi app (swipe it away from your app switcher) and then reopen it. This refreshes the app’s connection.

2. Check for app updates: Go to the App Store, tap your profile icon, and scroll down to see if there’s an update available for Tubi. Keeping the app updated helps avoid playback bugs.

3. Restart your iPhone: A simple reboot clears temporary glitches.

4. Check your internet connection: Make sure you have a stable connection. Try switching between Wi-Fi and cellular to test if one works better.

5. Region restrictions: Some movies may not be available in your geographic area due to licensing restrictions. If certain titles say “not available in your area,” that’s why they won’t play on your device.

6. Sign out and sign back in: Go to your Tubi account settings, log out, then log in again to refresh your account status.

If you’ve tried these and still have the issue, please let me know which movies or error messages you see, and I can help further troubleshoot or check if there’s a wider problem with those titles.

Are you able to give these steps a try? I’m here to help!