diff --git a/src/Palette/PaletteScroll.gd b/src/Palette/PaletteScroll.gd
index 0d0dec396..c3c2156a0 100644
--- a/src/Palette/PaletteScroll.gd
+++ b/src/Palette/PaletteScroll.gd
@@ -90,3 +90,4 @@ func _on_PaletteScroll_gui_input(event: InputEvent) -> void:
 			return
 		resize_grid()
 		set_sliders(palette_grid.current_palette, palette_grid.grid_window_origin + scroll_vector)
+		get_window().set_input_as_handled()
diff --git a/src/UI/Nodes/ValueSlider.gd b/src/UI/Nodes/ValueSlider.gd
index 9d9a4a508..8d9a8cbad 100644
--- a/src/UI/Nodes/ValueSlider.gd
+++ b/src/UI/Nodes/ValueSlider.gd
@@ -80,15 +80,21 @@ func _notification(what: int) -> void:
 		_reset_display(false)
 
 
-func _input(event: InputEvent) -> void:
+func _unhandled_input(event: InputEvent) -> void:
 	if not editable or not is_visible_in_tree():
 		return
-	if event.is_action_pressed(global_increment_action, true):
+	if (
+		not global_increment_action.is_empty()
+		and event.is_action_pressed(global_increment_action, true)
+	):
 		if snap_by_default:
 			value += step if event.ctrl_pressed else snap_step
 		else:
 			value += snap_step if event.ctrl_pressed else step
-	elif event.is_action_pressed(global_decrement_action, true):
+	elif (
+		not global_decrement_action.is_empty()
+		and event.is_action_pressed(global_decrement_action, true)
+	):
 		if snap_by_default:
 			value -= step if event.ctrl_pressed else snap_step
 		else:
diff --git a/src/UI/Timeline/AnimationTimeline.gd b/src/UI/Timeline/AnimationTimeline.gd
index 2b126738d..490f4fb2a 100644
--- a/src/UI/Timeline/AnimationTimeline.gd
+++ b/src/UI/Timeline/AnimationTimeline.gd
@@ -141,6 +141,7 @@ func _input(event: InputEvent) -> void:
 	if timeline_rect.has_point(mouse_pos):
 		if Input.is_key_pressed(KEY_CTRL):
 			cel_size += (2 * int(event.is_action("zoom_in")) - 2 * int(event.is_action("zoom_out")))
+			get_viewport().set_input_as_handled()
 
 
 func reset_settings() -> void: