Hi there! Thanks for reaching out. To get a clearer idea, when you say the letters "won't go into place" in the Zen Word app on your iPhone (iOS 18.6.2), do you mean the app isn't letting you arrange the letters to form words, or is the input unresponsive? Also, have you noticed if this happens at a particular level or all the time?

Meanwhile, a good initial step is to try clearing the app's cache or restarting it, as sometimes the app might get stuck. Since you're on iOS, you can try completely closing the app and reopening it. To do that, swipe up from the bottom of the screen to open the app switcher, then swipe the Zen Word app off the screen to close it, and then open it again.

If that doesn't help, uninstalling and reinstalling the app can sometimes clear any glitches.

Let me know if you've tried these or if the problem persists, and I'll guide you through some more targeted solutions!