Spring Security multiple url ruleset not working together

You override your previous matchers, see HttpSecurity.html#antMatcher:

Invoking antMatcher(String) will override previous invocations of mvcMatcher(String)}, requestMatchers(), antMatcher(String), regexMatcher(String), and requestMatcher(RequestMatcher).

and HttpSecurity.html#regexMatcher:

Invoking regexMatcher(String) will override previous invocations of mvcMatcher(String)}, requestMatchers(), antMatcher(String), regexMatcher(String), and requestMatcher(RequestMatcher).

If you want more than one configuration of HttpSecurity, see Spring Security Reference:

We can configure multiple HttpSecurity instances just as we can have multiple <http> blocks. The key is to extend the WebSecurityConfigurationAdapter multiple times. For example, the following is an example of having a different configuration for URL’s that start with /api/.

@EnableWebSecurity
public class MultiHttpSecurityConfig {
  @Autowired
  public void configureGlobal(AuthenticationManagerBuilder auth) { 1
      auth
          .inMemoryAuthentication()
              .withUser("user").password("password").roles("USER").and()
              .withUser("admin").password("password").roles("USER", "ADMIN");
  }

  @Configuration
  @Order(1)                                                        2
  public static class ApiWebSecurityConfigurationAdapter extends WebSecurityConfigurerAdapter {
      protected void configure(HttpSecurity http) throws Exception {
          http
              .antMatcher("/api/**")                               3
              .authorizeRequests()
                  .anyRequest().hasRole("ADMIN")
                  .and()
              .httpBasic();
      }
  }

  @Configuration                                                   4
  public static class FormLoginWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {

      @Override
      protected void configure(HttpSecurity http) throws Exception {
          http
              .authorizeRequests()
                  .anyRequest().authenticated()
                  .and()
              .formLogin();
      }
  }
}