"Room" scenes keep getting corrupted/Node count is 0 error

[SSneaky]

godot 4.2.1

error message

scene recreation:

(on reload, the recreation scene also got corrupted)

[ndbn]

AFAIK “node count is 0” means you have export variable like @export var node, it have value and point to deleted node.

[gertkeno]

Can you paste the .tscn file?

[SSneaky]

forum doesn’t allow you to attach .tscn files so ill coppy and paste the contents.

original test room file:
[gd_scene load_steps=3 format=3 uid=“uid://d2nx45fb3u4j3”]

[ext_resource type=“Script” path=“res://test_room.gd” id=“1_dvv1b”]
[ext_resource type=“PackedScene” uid=“uid://dp57pdx12gxpf” path=“res://Test_door.tscn” id=“2_7of7s”]

[node name=“Start_point” type=“Marker3D”]
script = ExtResource(“1_dvv1b”)

[node name=“CSGBox3D” type=“CSGBox3D” parent=“.”]
transform = Transform3D(2, 0, 1, 0, 1, 0, -1, 0, 2, 2, 0, 2)
use_collision = true
collision_layer = 2
collision_mask = 2
size = Vector3(2, 0, 2)

[node name=“EndPoint” type=“Marker3D” parent=“.”]
transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 6.06326, 0, 0)

[node name=“Test_door” parent=“.” instance=ExtResource(“2_7of7s”)]
transform = Transform3D(0.525, 0, 0, 0, 1.05, 0, 0, 0, 1.05, 2, 1.4641, 0)

[connection signal=“roomclear” from=“Test_door” to=“.” method=“_on_test_door_roomclear”]

room recration file:
[gd_scene load_steps=3 format=3 uid=“uid://codixw2yox7c0”]

[ext_resource type=“Script” path=“res://test_room.gd” id=“1_k6d7e”]
[ext_resource type=“PackedScene” uid=“uid://dp57pdx12gxpf” path=“res://Test_door.tscn” id=“2_dedeo”]

[node name=“StartPoint” type=“Marker3D”]
script = ExtResource(“1_k6d7e”)

[node name=“CSGBox3D” type=“CSGBox3D” parent=“.”]
transform = Transform3D(0.525, 0, 0, 0, 1.05, 0, 0, 0, 1.05, 4.07124, 0, 0)
use_collision = true
size = Vector3(15.493, 0, 2)

[node name=“Test_door” parent=“.” instance=ExtResource(“2_dedeo”)]
transform = Transform3D(0.525, 0, 0, 0, 1.05, 0, 0, 0, 1.05, 8.00071, 1.54244, 0)

[node name=“EndPoint” type=“Marker3D” parent=“.”]
transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 8.00071, 0, 0)

[SSneaky]

Changed preload(“scene”) to load(“scene”). works now