Spring Fox (Swagger) 2.9.2's Autogenerated swagger-ui is Not Showing Interactive API

Using Spring Fox 2.9.2 with Spring Boot 2.1.5 RELEASE, I am not able to use the interactive UI generated by Swagger.

This is with the REST Endpoints not expanded:

This is with the REST Endpoint expanded (as you can see there's no text field to type the id inside):

Maven pom.xml:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.5.RELEASE</version>
    <relativePath/>
</parent>

<dependencies>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger2</artifactId>
        <version>2.9.2</version>
    </dependency>

    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>2.9.2</version>
    </dependency>
</dependencies>

Swagger2Config.java:

package com.myservice.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@Configuration
@EnableSwagger2
public class Swagger2Config {
    @Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2).select()
                                   .apis(RequestHandlerSelectors
                                   .basePackage("com.myservice"))
                                   .paths(PathSelectors.any())
                                   .build()
                                   .apiInfo(apiEndPointsInfo());
    }

    private ApiInfo apiEndPointsInfo() {
        return new ApiInfoBuilder().title("MyService API")
                                   .description("Buildings you measure.")
                                   .contact(new Contact(null, null, null))
                                   .license("Apache 2.0")
                                   .licenseUrl("http://www.apache.org/licenses/LICENSE-2.0.html")
                                   .version("1.0.0")
                                   .build();
    }
}

Also noticed is that I didn't need to use any Swagger specific annotations (e.g.@ApiOperation & @ApiResponse) inside the RestController (I did try putting them above getByUsingId(Integer id) method, and whereas my documentation was visible it still didn't have the id text field):

RestController:

@RequestMapping(value = {"/{id}" }, method = RequestMethod.GET, produces = "APPLICATION/JSON")
public ResponseEntity<Object> getByUsingId(@PathVariable(value = "id", required = true) Integer id) 
throws IOException {
       MyResponse response = myDao.getById(id);
       if (response == null) {
           return new ResponseEntity<Object>(HttpStatus.NOT_FOUND);
       }
       return new ResponseEntity<Object>(response, headers, HttpStatus.OK);
}

Comparing this to an old Spring Boot 1.5.6 RELEASE project, Spring Fox 2.6.1 has a much better UI and it is interactive (notice the better colors and the visible text field when expanded):

This look & feel (along with the interactive text fields) is exactly, what I want and need...

Question(s):

1. Is this a possible bug (the non-interactive text field) in Spring Fox 2.9.2?

2. Why is the swagger-ui looked dumbed down (the colors being different & not being so sharp looking, etc)?

Since, this forum stated "Message cannot exceed 20,000 characters.", I posted my question on Stack Overflow (SO):

https://stackoverflow.com/questions/58775057/spring-fox-swagger-2-9-2s-autogenerated-swagger-ui-is-not-showing-interactive

The SO post contains the pom.xml, Swagger2Config.java, RestController.java code from my older Spring Boot project which works.