Java Extension IDE Not recognizing Javafx imports. VSCODE App Compiles and Runs

This test app compiles and runs, but after 2 days of trying I cannot get rid of the wavy red lines to all references to javafx. The class file does not show any error. Also, Intellisense works and javafx is recognised until you hit enter and then the wavy line appears (see screen shot below).

I have included first line of "Problems" along with launch, tasks and settings json files.

For example:
[{
"resource": "/c:/Development-C/VSCode/Workspaces/Java/SimpleWindow/src/Main.java",
"owner": "generated_diagnostic_collection_namehttps://github.com/microsoft/vscode/issues/1",
"code": "errors(1): 1:8-1:14",
"severity": 8,
"message": "package javafx.application does not exist",
"startLineNumber": 1,
"startColumn": 8,
"endLineNumber": 1,
"endColumn": 14
},

Source Code:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;
import javafx.scene.layout.StackPane;

public class Main extends Application {
@OverRide
public void start(Stage primaryStage) {
primaryStage.setTitle("Hello World");

Button btn = new Button("Close");
btn.setOnAction(e -> primaryStage.close());

StackPane root = new StackPane();
root.getChildren().add(btn);

Scene scene = new Scene(root, 300, 200);

primaryStage.setScene(scene);
primaryStage.show();

}

public static void main(String[] args) {
launch(args);
}
}
Settings.json:
{
"java.home": "C:/Java/64bit/Oracle_JDK-23",
"java.debug.settings.hotCodeReplace": "manual",
"java.configuration.runtimes": [
{
"name": "JavaSE-23",
"path": "C:/Java/64bit/Oracle_JDK-23"
}
],
"java.project.referencedLibraries": [
"c:\Java\64bit\javafx-sdk-23.0.1\lib\javafx.base.jar",
"c:\Java\64bit\javafx-sdk-23.0.1\lib\javafx.controls.jar",
"c:\Java\64bit\javafx-sdk-23.0.1\lib\javafx.fxml.jar",
"c:\Java\64bit\javafx-sdk-23.0.1\lib\javafx.graphics.jar"
]
}
launch.json
{
"version": "0.2.0",
"configurations": [
{
"type": "java",
"name": "Launch JavaFX",
"request": "launch",
"mainClass": "Main",
"vmArgs": "--module-path C:/Java/64bit/javafx-sdk-23.0.1/lib --add-modules javafx.controls,javafx.fxml"
}
],
"args": [
"--module-path", "C:/Java/64bit/javafx-sdk-23.0.1/lib",
"--add-modules", "javafx.controls,javafx.fxml"
]
}
and
tasks.json
{
"version": "2.0.0",
"tasks": [
{
"label": "build",
"type": "shell",
"command": "javac",
"args": [
"--module-path",
"C:/Java/64bit/javafx-sdk-23.0.1/lib",
"--add-modules",
"javafx.controls,javafx.fxml",
"-d",
"bin",
"src/Main.java"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
Screen Shot:

Start by reproducing the diagnostics using the provided Main.java, settings.json, launch.json, and tasks.json with the JavaFX SDK paths shown. Check why the Java extension reports javafx imports as missing despite the build and launch configurations succeeding. Done means the JavaFX imports no longer show wavy error lines while the sample still compiles and runs.