Multiple subscribers, not all subscribers notified with QoS 1

[Christian Treber]

Mosquitto 2.0.14 on Ubuntu

I have three subscribers to a topic with QoS 1. When I publish with QoS 0, all subscribers get a publish. When I publish with QoS 1, only two subscribers get a publish.

QoS 0:

2022-01-08T21:43:01: Received PUBLISH from mqttspy-neko (d0, q0, r0, m0, 'generic/time', ... (15 bytes))
2022-01-08T21:43:01: Sending PUBLISH to acclock02 (d0, q0, r0, m0, 'generic/time', ... (15 bytes))
2022-01-08T21:43:01: Sending PUBLISH to acclock01 (d0, q0, r0, m0, 'generic/time', ... (15 bytes))
2022-01-08T21:43:01: Sending PUBLISH to mqttspy-neko (d0, q0, r0, m0, 'generic/time', ... (15 bytes))

This is fine; all three get a publish.

QoS 1:

2022-01-08T21:53:07: Received PUBLISH from mqttspy-neko (d0, q1, r0, m97, 'generic/time', ... (15 bytes))
2022-01-08T21:53:07: Sending PUBLISH to acclock01 (d0, q1, r0, m188, 'generic/time', ... (15 bytes))
>>>Note acclock02 missing<<<
2022-01-08T21:53:07: Sending PUBLISH to mqttspy-neko (d0, q1, r0, m43, 'generic/time', ... (15 bytes))
2022-01-08T21:53:07: Sending PUBACK to mqttspy-neko (m97, rc0)
2022-01-08T21:53:07: Received PUBACK from mqttspy-neko (Mid: 43, RC:0)
2022-01-08T21:53:07: Received PUBACK from acclock01 (Mid: 188, RC:0)

acclock02 is not being notified (exactly the same software/ hardware as acclock01, just two devices of the same kind).

I am missing something?

Christian

[Christian Treber (ctreber)]

Ay caramba, I meant "not all subscibers notified"