I have same issue as here but none of the solutions works for me in Eclipse 2024-03 (4.31.0) and Lombok 1.18.12.

I have dependency:

<project...>
   <dependencies>
      <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.18.12</version>
      </dependency>

I exit Eclipse and installed lombok in Eclipse:

I checked is it everything ok.

eclipse.ini file has this:

-javaagent:C:UsersXXXXXeclipsejee-2024-03eclipselombok.jar

There is lombok.jar file:

And I started Eclipse and Project/Clean all and Build workplace

And still lombok doesn’t work.
I even update Maven on the project but nothing.