Kafka persistence example: Timeout waiting to obtain Kafka Store

I'm trying the Quarkus Kafka persistence example here https://github.com/kiegroup/kogito-examples/tree/stable/kogito-quarkus-examples/process-kafka-persistence-quarkus.

I'm executing the first sample call with curl as provided in the README.md of the above example. The call hangs, and after a while I get an error on Quarkus app: "Timeout waiting to obtain Kafka Store for process: deals". Actually, I get the exact same type of error in my own app (which uses a different Kafka) when trying to use Kafka persistence (which was the reason I tried the official example, just to double-check).

• Complete logs: https://pastebin.com/Q99JP6gh
• Java version: openjdk version "17.0.3" 2022-04-19 OpenJDK Runtime Environment Temurin-17.0.3+7 (build 17.0.3+7) OpenJDK 64-Bit Server VM Temurin-17.0.3+7 (build 17.0.3+7, mixed mode)
• Kafka, Zookeeper, and Kafdrop have been booted using the Docker Compose file of the official example.
• Quarkus version: 2.15.2.Final + 2.16.1.Final (in my own app), 2.16.0.Final (in the example)
• Kafdrop output: