diff --git a/src/erlab/interactive/_options/ui.py b/src/erlab/interactive/_options/ui.py
index d96f115fa..1b413d9b4 100644
--- a/src/erlab/interactive/_options/ui.py
+++ b/src/erlab/interactive/_options/ui.py
@@ -572,6 +572,12 @@ def _make_category_page(self, scope: _Scope, category: str) -> QtWidgets.QWidget
 
         for path in paths:
             control = self._make_control(path)
+            # The dialog saves and refreshes immediately after each value change.
+            # Defer typed numeric changes so a refresh does not interrupt entry.
+            if isinstance(control, QtWidgets.QAbstractSpinBox):
+                control.setKeyboardTracking(False)
+            for spin in control.findChildren(QtWidgets.QAbstractSpinBox):
+                spin.setKeyboardTracking(False)
             row = _SettingsRow(scope=scope, path=path, control=control, parent=page)
             self._rows[(scope, path)] = row
             self._connect_control(row)
diff --git a/tests/interactive/test_options.py b/tests/interactive/test_options.py
index fb48d9ed7..9f36f57cf 100644
--- a/tests/interactive/test_options.py
+++ b/tests/interactive/test_options.py
@@ -143,6 +143,13 @@ def test_dialog_native_structure(dialog: OptionDialog):
     assert container.layout().contentsMargins().right() > 0
 
 
+def test_dialog_spinboxes_disable_keyboard_tracking(dialog: OptionDialog):
+    spinboxes = dialog.findChildren(QtWidgets.QAbstractSpinBox)
+
+    assert spinboxes
+    assert all(not spin.keyboardTracking() for spin in spinboxes)
+
+
 def test_dialog_setting_descriptions_are_visible_not_duplicate_tooltips(
     dialog: OptionDialog,
 ):