I encountered the issue and in Unreal slackers we found out that there is a fix that doesn’t require engine recompilation
Engine/Build/Android/Java/src/com/epicgames/unreal/GameActivity.java.template
line 6397
- public class VirtualKeyboardInput extends androidx.appcompat.widget.AppCompatEditText
+ // BEGIN META SECTION - Keyboard Fix
+ public class VirtualKeyboardInput extends EditText
+ // END META SECTION - Keyboard Fix
line 6430
- super.onSelectionChanged(selStart, selEnd);
+ // BEGIN META SECTION - Keyboard Fix
+ //super.onSelectionChanged(selStart, selEnd);
+ // END META SECTION - Keyboard Fix