#EnableTransactionManagement breaks my tests - spring

Question

So, I have a Spring Boot app. Recently I added an aspect I would like to apply after #Transaction aspect handler. So on my main app class I added #EnableTransactionManagement with lowering the order for transactions.
#SpringBootApplication
#EntityScan(basePackageClasses = { Application.class, Jsr310JpaConverters.class })
#EnableAutoConfiguration(exclude = RepositoryRestMvcAutoConfiguration.class)
#EnableSpringDataWebSupport
#EnableScheduling
// Need to lower the transaction aspect priority in order to SyncAspect have a higher prio
// The lower the number the higher the priority, defaults to HIGHEST_PRECEDENCE = -2147483648
#EnableTransactionManagement(order = Ordered.HIGHEST_PRECEDENCE + 2)
public class Application extends SpringBootServletInitializer {
public static void main(final String[] args) {
SpringApplication.run(Application.class, args);
}
...
The order here does not matter (the test fails even when I just add #EnableTransactionManagement without any additional config) but after adding this annotation one of our tests failed. It is a #WebMVCTest and now it returns 404 for all the requests made in the test. Here is the test class declared.
#RunWith(SpringRunner.class)
#WebMvcTest(controllers = OptionMenuController.class)
#WithMockUser(roles = { "ENTERPRISE_USER" })
#ActiveProfiles(profiles = {"develop"})
public class OptionMenuControllerTest extends AbstractFullFeatureSetControllerTest<OptionMenu> {
...
#Import(DummySecurityConfiguration.class)
public abstract class AbstractFullFeatureSetControllerTest<EntityType extends Identifiable>
extends AbstractControllerTest<EntityType>
...
#TestConfiguration
public class DummySecurityConfiguration {
#Bean(name = "store_based_auth")
public UserDetailsService storeBasedAuthService() {
return Mockito.mock(UserDetailsService.class);
}
#Bean(name = "webui")
public UserDetailsService webUiService() {
return Mockito.mock(UserDetailsService.class);
}
#Bean(name = "integration_api_auth")
public UserDetailsService integrationApiAuthService() {
return Mockito.mock(UserDetailsService.class);
}
#Bean(name = "onboarding_api_auth")
public UserDetailsService onboardingApiAuthService() {
return Mockito.mock(UserDetailsService.class);
}
#Bean
public JwtService jwtService() {
return Mockito.mock(JwtService.class);
}
}
I have no idea why it happens. It looks really strange. But my guess is it has something to do with this #WithMockUser annotation. Maybe when I added #EnableTransactionManagement on the main class it reconfigured something in a wrong way that a dummy user is not found any more that's why I get 404 for all the tests in the test class.
Any ideas or hints?
While debugging I found that the controller method is not ever run.