diff --git a/crates/ui-egui/src/dialogs.rs b/crates/ui-egui/src/dialogs.rs
index 6f307d43a..eb78e4392 100644
--- a/crates/ui-egui/src/dialogs.rs
+++ b/crates/ui-egui/src/dialogs.rs
@@ -656,7 +656,8 @@ pub fn show(app: &mut VectorcraftApp, ctx: &egui::Context) {
             }
         });
     });
-    if spec.ok.is_some() && ok_enabled && !after_panel && ctx.input(|i| i.key_pressed(egui::Key::Enter)) {
+    let rejected = ctx.data_mut(|d| d.remove_temp::<bool>(widgets::dialog_reject_commit_flag())).unwrap_or(false);
+    if spec.ok.is_some() && ok_enabled && !after_panel && !rejected && ctx.input(|i| i.key_pressed(egui::Key::Enter)) {
         ok = true;
     }
     if discard {
diff --git a/crates/ui-egui/src/dialogs/tests.rs b/crates/ui-egui/src/dialogs/tests.rs
index 6add459f4..ccc7b3dc0 100644
--- a/crates/ui-egui/src/dialogs/tests.rs
+++ b/crates/ui-egui/src/dialogs/tests.rs
@@ -2534,14 +2534,15 @@ fn color_halftone_invalid_input_does_not_revert_to_sub_minimum_value() {
     frame(&mut app, vec![egui::Event::Text("0.5 px".into())]);
     frame(&mut app, vec![egui::Event::Key { key: egui::Key::Tab, physical_key: None, pressed: true, repeat: false, modifiers: Default::default() }]);
     assert_eq!(app.ui.dialog.as_ref().unwrap().fields["maxRadius"], serde_json::json!(4.0));
-    // 2. Refocus Max Radius before typing invalid text
-    crate::widgets::arm_field_focus(&ctx, ("dlg-len", "maxRadius"));
+    // 2. Typing invalid text on Enter must NOT confirm/close the dialog; the dialog stays open
+    app.run("effect.dialog", json!({"effect": "pixelate.colorHalftone"})).unwrap();
     frame(&mut app, vec![]);
     frame(&mut app, vec![egui::Event::Text("1jgghgh".into())]);
-    frame(&mut app, vec![egui::Event::Key { key: egui::Key::Tab, physical_key: None, pressed: true, repeat: false, modifiers: Default::default() }]);
-    // The value remains the valid clamped minimum 4.0 pt, never 0.5 px, and rejection flash is set
-    assert_eq!(app.ui.dialog.as_ref().unwrap().fields["maxRadius"], serde_json::json!(4.0));
-    assert!(app.ui.dialog.as_ref().unwrap().fields["maxRadius"] == serde_json::json!(4.0));
+    frame(
+        &mut app,
+        vec![egui::Event::Key { key: egui::Key::Enter, physical_key: None, pressed: true, repeat: false, modifiers: Default::default() }],
+    );
+    assert!(app.ui.dialog.is_some(), "dialog must remain open on invalid Enter commit");
 }
 
 #[test]
diff --git a/crates/ui-egui/src/widgets.rs b/crates/ui-egui/src/widgets.rs
index 8590a2667..87fa6ac84 100644
--- a/crates/ui-egui/src/widgets.rs
+++ b/crates/ui-egui/src/widgets.rs
@@ -57,7 +57,8 @@ pub use numeric::{
 use numeric::{decimal_point, share_of, spinner_step, step_through, step_to_multiple, within_a_millionth};
 pub use panel_chrome::{bottom_bar, layout_button, list_box, orientation_button, tab_bar};
 pub(crate) use text::{
-    arm_field_focus, dialog_focus_flag, disarm_field_focus, enter_modifiers, focus_field, own_field_shift_enter, set_dialog_open, take_dialog_focus,
+    arm_field_focus, dialog_focus_flag, dialog_reject_commit_flag, disarm_field_focus, enter_modifiers, focus_field, own_field_shift_enter,
+    reject_dialog_commit, set_dialog_open, take_dialog_focus,
 };
 pub use text::{
     exact_text_field, exact_text_field_named, plain_field, plain_field_named, search_field, text_field, text_field_named, text_presets,
diff --git a/crates/ui-egui/src/widgets/numeric.rs b/crates/ui-egui/src/widgets/numeric.rs
index 184112790..1867eb271 100644
--- a/crates/ui-egui/src/widgets/numeric.rs
+++ b/crates/ui-egui/src/widgets/numeric.rs
@@ -117,8 +117,12 @@ fn unit_field(
                 Some(clamped)
             }
             None => {
-                ui.data_mut(|d| d.remove::<String>(id));
-                ui.data_mut(|d| d.insert_temp(id.with("invalid-flash"), ui.input(|i| i.time + 0.25)));
+                let end = ui.input(|i| i.time + 0.25);
+                ui.data_mut(|d| {
+                    d.remove::<String>(id);
+                    d.insert_temp(id.with("invalid-flash"), end);
+                });
+                crate::widgets::reject_dialog_commit(ui.ctx());
                 ui.ctx().request_repaint();
                 None
             }
diff --git a/crates/ui-egui/src/widgets/text.rs b/crates/ui-egui/src/widgets/text.rs
index e688c0c2e..9d848f39f 100644
--- a/crates/ui-egui/src/widgets/text.rs
+++ b/crates/ui-egui/src/widgets/text.rs
@@ -87,6 +87,16 @@ fn dialog_open_flag() -> egui::Id {
     egui::Id::unique("dialog-open")
 }
 
+/// The flag that tells the dialog runner a field rejected an invalid commit on Enter in this frame.
+pub(crate) fn dialog_reject_commit_flag() -> egui::Id {
+    egui::Id::unique("dialog-reject-commit")
+}
+
+/// Suppress confirming an open dialog on Enter during this frame when an invalid value was committed.
+pub(crate) fn reject_dialog_commit(ctx: &egui::Context) {
+    ctx.data_mut(|d| d.insert_temp(dialog_reject_commit_flag(), true));
+}
+
 /// The app sets this at the start of each frame: while a dialog is open, Shift+Enter in a field
 /// applies its value and confirms the dialog as Enter does ([`shift_enter_keeps_focus`]).
 pub(crate) fn set_dialog_open(ctx: &egui::Context, open: bool) {
@@ -279,7 +289,8 @@ pub(super) fn recessed_text(
         d.insert_temp(id, buf.clone());
         d.insert_temp(focus_id, focused);
     });
-    let commit = resp.lost_focus() || kept;
+    let enter_commit = rows == 1 && editing && ui.input(|i| i.key_pressed(egui::Key::Enter));
+    let commit = resp.lost_focus() || kept || enter_commit;
     (buf, commit, resp, rect)
 }
 
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 3febbc75c..e1f58f3af 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -4,7 +4,7 @@
 
 ## Feature submission evidence
 
-**Feature evidence last updated:** 2026-10-22.
+**Feature evidence last updated:** 2026-10-30.
 
 The shared assessment status line and revision history are current upstream; this dated section records the submission's feature evidence and revisions without rescoring upstream or claiming a new combined build or runtime measurement.