Getter is not created in lombok@Data?

I am studying java at SpringToolSuite4.
I am trying to automatically add Getter, Setter, etc. using lombok@Data.
However, the controller does not digest Getter, so

Even if I access it directly from the browser, I still get an error.
Unresolved compilation problem:Method getName() is undefined for type User

The class definition specifies @Data in the following code:

package com.example.demo.models;

import javax.validation.constraints.Email;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

import lombok.Data;

@ Data
@Entity
@Table(name="user")
public class User implements Serializable {
    private static final long serialVersionUID=-6647247658748349084L;

    @Id
    @GeneratedValue (strategy=GenerationType.IDENTITY)
    private long id;

    @NotBlank
    @Size(min=3,max=10)
    private String name;

    @NotBlank
    @ Email
    private String mail;

    @Size (max=400)
    private String introduction;
    
    @NotBlank
    @Size(min=3,max=20)
    private String nickname;

    public void clear() {
        name = null;
        mail = null;
        introduction=null;
        nickname = null; 
    }
}

The main controller is called as follows:

@GetMapping("/form3")
    public String form 3 (User user) {
        String nameString=user.getName();
        // Abbreviated
        return "root/form3";
    }

Looking at the official page of Lombok, the above settings seem good.
https://projectlombok.org/features/Data

Could you tell me what the problem is?
Thank you for your cooperation.

[Additional note: 2022-06-23]
I added Getter and Setter of the same Lombok part as below.
Import has also been added.

@NotBlank
    @Getter
    @Setter
    @Size(min=3,max=10)
    private String name;

However, if you look at the controller, it does not appear.
This seems to be because IDE or rombook is not working properly.

As I mentioned in the comment in the answer, the lombok reinstallation has already been performed.

*Getter and setter are not displayed in the available methods

記Additional note: 2022-06-24 br
When I wrote the code as follows, I was warned that it was undefined, but
It ran without errors as well as the compiler.
That means getter and setter have been made.

Strangely enough, however, if you step in with debugging
Move to a place where there is no code at all.

Should I think that spring tool suite is not working properly?