Spring, RabbitMQ, Sleuth and Zipkin: No tracings available in Zipkin - spring

Question

Im trying to implement distributed tracing using Spring, RabbitMQ, Sleuth and Zipkin. So I added the dependencies:
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-sleuth-zipkin</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
And configured sleuth and zipkin in my bootstrap.yml:
spring:
sleuth:
sampler:
probability: 1.0
zipkin:
rabbitmq:
addresses: ${RABBIT_MQ_HOST:localhost}:${RABBIT_MQ_PORT:5672}
sender:
type: rabbit
So starting my services and making some rest calls I get this in the logs:
zuul-gateway | 2020-04-01 01:49:25.453 INFO [zuul-gateway,384ce1318abef3f3,74ad64f70e120f4e,true] 1 --- [nio-8765-exec-4] d.f.z.ZuulLoggingFilter : request -> org.springframework.cloud.netflix.zuul.filters.pre.Servlet30RequestWrapper#70eb5e67 request uri -> /user-service/users
user-service-3 | 2020-04-01 01:49:25.462 INFO [user-service,384ce1318abef3f3,4522ae801a21c30e,true] 1 --- [nio-8000-exec-2] de.fronetic.userservice.UserController : Order by: age, Users: [User(id=4, lastName=Savona, firstName=Albert, age=101), User(id=3, lastName=Esposito, firstName=Derryl, age=12), User(id=1, lastName=Belmonte, firstName=Maeleth, age=14), User(id=6, lastName=Grillo, firstName=Madhu, age=21), User(id=2, lastName=Colt, firstName=Tychon, age=28), User(id=8, lastName=Causer, firstName=Stana, age=44), User(id=7, lastName=Seelen, firstName=Bellatrix, age=52), User(id=5, lastName=Hakobyan, firstName=Zinoviy, age=57)]
user-transformation-service | 2020-04-01 01:49:25.475 INFO [user-transformation-service,384ce1318abef3f3,47a61185e3cca375,true] 1 --- [nio-8100-exec-7] d.f.u.UserTransformationController : Users: [User(id=4, lastName=Savona, firstName=Albert, age=101), User(id=3, lastName=Esposito, firstName=Derryl, age=12), User(id=1, lastName=Belmonte, firstName=Maeleth, age=14), User(id=6, lastName=Grillo, firstName=Madhu, age=21), User(id=2, lastName=Colt, firstName=Tychon, age=28), User(id=8, lastName=Causer, firstName=Stana, age=44), User(id=7, lastName=Seelen, firstName=Bellatrix, age=52), User(id=5, lastName=Hakobyan, firstName=Zinoviy, age=57)]
For now it looks good. Sleuth added the tracing ID's.
Calling the Zipkin UI I can see that the service names where added:
But there are no tracing informations at all:
So im wondering what im missing in my configuration.
EDIT
Turned out there are tracing informations arriving in zipkin. I can use the search bar in the top right corner to search for tracing id's directly:
I will then get:
So the question is why is there nothing in the overview or queryable via the trace lookup?