Mqtt-bridge

Hello, I have mqtt-bridge setup so that I see changes from smartthings in my mosquitto mqtt broker (via client) and in the mqtt-bridge log. However when I publish an mqtt command (from mqtt client) for the same devices, the switch doesn’t change and the mqtt-bridge log doesn’t update. So essentially it is only working ST->mqtt-bridge->mosquitto->client and not client->mosquitto->mqtt-bridge->ST. Any tips?

log from mqtt-bridge when I use the switch from within smartthings:
0|smartthings-mqtt-bridge | info: Incoming message from SmartThings: smartthings/Downstairs Bath Fan/switch = on
0|smartthings-mqtt-bridge | info: Incoming message from SmartThings: smartthings/Downstairs Bath Fan/switch = off

I see the corresponding mqtt messages in my mqtt client subscription:
smartthings/Downstairs Bath Fan/switch on
smartthings/Downstairs Bath Fan/switch off

if I publish into mqtt broker from mqtt.fx (mqtt client) the same command that I received as subscription, the switch doesn’t change and there is no mqtt-bridge log entry.
smartthings/Downstairs Bath Fan/switch on