Intermittent absence of metrics for the kafka_consumergroup_lag_sum parameter

[hasya77]

Hello everyone!

The kafka_consumergroup_lag_sum metric regularly disappears from the exporter. This might be related to how the exporter works: the offset is available, but the calculation is not performed.
Has anyone encountered a similar issue?

Configure:

services:
  kafka-exporter:
    container_name: kafka-exporter
    image: "***/kafka-exporter:20251226"
    command:
      - --kafka.server=HOST01:9092
      - --kafka.server=HOST02:9092
      - --kafka.server=HOST03:9092
      - --sasl.enabled
      - --sasl.mechanism=plain
      - --sasl.username=${KAFKA_USER}
      - --sasl.password=${KAFKA_PASSWORD}
    ports:
      - 9308:9308
    restart: always