Hi there! I understand how frustrating it can be to have the WSJ app show a white screen and then disappear on your iPhone. Let's see if we can get this sorted out.

Here are a few steps you can try:

1. Force Quit the App: Swipe up from the bottom of the screen (or double-tap the home button if you have one) to see your app switcher. Then, swipe away the WSJ app to close it completely. After that, try reopening it.

2. Restart Your iPhone: Sometimes, a quick reboot can resolve minor glitches. To do this, press and hold the power button (and the volume button on some models) until you see the slider. Turn off your device, wait a moment, and then turn it back on.

3. Update the App: Ensure that you have the latest version of the WSJ app installed. Open the App Store, go to "Updates," and check if there's an update available for the WSJ app.

4. Check Your Internet Connection: Make sure you’re connected to the internet, as connectivity issues can sometimes cause apps to misbehave.

5. Reset App Settings: If the problem persists, you can try resetting the app settings. Launch the WSJ app, tap on "Profile," then select "Reset Content." This should refresh the app and load the latest content.

If you’ve gone through these steps and the issue remains unresolved, please let me know, and I may need to check for more detailed solutions or investigate if there are any known issues with the app and iOS version. Are you satisfied with the solution I provided?