From 5bedaf77f71a38bc8c066931526775c52bd2e823 Mon Sep 17 00:00:00 2001
From: smix8 <52464204+smix8@users.noreply.github.com>
Date: Thu, 5 Sep 2024 14:49:32 +0200
Subject: [PATCH] Fix 2D debug navigation flickering with tile maps

Both the tile map layers and the debug navigation canvas items did fight for the same z order causing a lot of flickering in certain situations.
---
 scene/2d/navigation_region_2d.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scene/2d/navigation_region_2d.cpp b/scene/2d/navigation_region_2d.cpp
index 9b3c7bb9ea8..f65a3c0ecca 100644
--- a/scene/2d/navigation_region_2d.cpp
+++ b/scene/2d/navigation_region_2d.cpp
@@ -452,6 +452,7 @@ void NavigationRegion2D::_update_debug_mesh() {
 	const Transform2D region_gt = get_global_transform();
 
 	rs->canvas_item_set_parent(debug_instance_rid, get_world_2d()->get_canvas());
+	rs->canvas_item_set_z_index(debug_instance_rid, RS::CANVAS_ITEM_Z_MAX - 2);
 	rs->canvas_item_set_transform(debug_instance_rid, region_gt);
 
 	if (!debug_mesh_dirty) {