When eBPF flow filter is used, FLP doesn't receive any flows when Kafka is enabled.  When you disable Kafka, everything works as expected.

1. Create a FlowCollector instance with Loki enabled, Kafka enabled, and sampling = 1.

2. In Observe > Network Traffic, Traffic flows table, Verify that you are seeing traffic on port 53 (or some other port).

3. Configure an eBPF flow filter such as:
  agent:
    ebpf:
      flowFilter:
        enable: true
        action: Accept
        cidr: 0.0.0.0/0
        ports: 53  # change accordingly
        protocol: TCP

4. No traffic appears.

A notification appears in Web console saying that FLP hasn't received any flows.

Flows in the Traffic flow table with source port 53 or destination port 53