To reproduce: 1. Add Input System package. 2. In Project Settings, change Active Input Handling to Input System Package (New) 3. Put an Input Field (not TMP, just the normal kind) 4. Build project as Android apk, run on a device. 5. Enter roughly 70 characters into the input field, app crashes. (A reproduction project is also attached, a bug report is also filed Case 1266543) Apparently this has been around for a long time now and now that Input System is out of preview yet it's still not fixed. Please take a look.