### Godot version

4.0.2

### System information

Windows 10

### Issue description

EDIT: this was fixed by removing the offending files listed with the MRP and then dragging them back in from my desktop after opening the project~

I was developing my game then suddenly this started happening. I can no longer playtest my game.
I am not 100% sure what caused this but I believe at the time I was making a new inherited scene, saved it, then moved some scenes in the FileSystem tab?

![image](https://user-images.githubusercontent.com/75141902/235264827-62419c7d-963b-4002-9452-a6493a9bfe25.png)


### Steps to reproduce

No idea aaa- x-x

### Minimal reproduction project

Since I have no idea what caused it here's my early project :'D
https://drive.google.com/file/d/14JFZ420AelUNjBIth78msHY29rNjB55_/view?usp=share_link

I was working on these when the error occurred:
- Slot_0.tcsn
- Slot_Clickable.tscn
- Slot_Orphan.tscn
- Slot_Orphan.gd

*/
					int open_bracket_pos = begin_scan, close_bracket_pos = 0;
					while (open_bracket_pos < stripped_line.length() && (stripped_line[open_bracket_pos] == ' ' || stripped_line[open_bracket_pos] == '\t')) {
						open_bracket_pos++;
					}
					if (open_bracket_pos == stripped_line.length() || stripped_line[open_bracket_pos++] != '(') {
						continue; 
					}
					close_bracket_pos = open_bracket_pos;
					while (close_bracket_pos < stripped_line.length() && stripped_line[close_bracket_pos] != ')') {
						close_bracket_pos++;
					}
					if (close_bracket_pos == stripped_line.length()) {
						continue; 
					}
					int colon_pos = close_bracket_pos + 1;
					while (colon_pos < stripped_line.length() && (stripped_line[colon_pos] == ' ' || stripped_line[colon_pos] == '\t')) {
						colon_pos++;
					}
					if (colon_pos == stripped_line.length() || stripped_line[colon_pos++] != ':') {
						continue; 
					}
					title = stripped_line.substr(open_bracket_pos, close_bracket_pos - open_bracket_pos).strip_edges();
					link = stripped_line.substr(colon_pos).strip_edges();
				}
				mode = TUTORIALS;
			} else if (mode == TUTORIALS) { 
				mode = DONE;
			}
		}