swagger-ui BaseLayout config + GroupedOpenApi makes swagger-ui breaks

[brunopma]

Describe the bug

Adding springdoc.swagger-ui.layout=BaseLayout in application.properties while using GroupedOpenApi group makes swagger-ui return No API definition provided.

To Reproduce
using spring-boot-starter-parent v3.5.5 & springdoc-openapi-starter-webmvc-ui 2.8.12:

• Add springdoc.swagger-ui.layout=BaseLayout to application.properties.
• Add GroupedOpenApi beans in SwaggerConfig.java

If I remove springdoc.swagger-ui.layout=BaseLayout, it works normally: