I can send the following command to my mosquitto broker and it works with no issue to turn a node on and off.

mosquitto_pub -t 'mysgateway-in/5/0/1/0/2' -m 'OFF'
mosquitto_pub -t 'mysgateway-in/5/0/1/0/2' -m 'ON'

I am using HabPanel and set up a switch to basically toggle from OFF to ON

The OpenHab item is "mqttsw1"

my items file looks like this

Switch mqttsw1 "Switch 1" (all) {mqtt=">[mysgateway-in/5/0/1/0/2:command:*:default],>[mysgateway-in/5/0/1/0/2:command:off:default,<[mysgateway-in/5/0/1/0/2:command:*:default]]"}

My mqtt-eventbus.cfg looks like this. I believe the issue is in the commandPublishTopic and if I comment out the existing line and replace it with the one right below I can get at least that switch to work.

broker=mosquitto

# When available, all status updates which occur on the openHAB event bus are published to the provided topic. The message content will
# be the status. The variable ${item} will be replaced during publishing with the item name for which the state was received.
#statePublishTopic=

# When available, all commands which occur on the openHAB event bus are published to the provided topic. The message content will be the
# command. The variable ${item} will be replaced during publishing with the item name for which the command was received.
commandPublishTopic=mysgateway-in/${item}
#commandPublishTopic=mysgateway-in/5/0/1/0/2

# When available, all status updates received on this topic will be posted to the openHAB event bus. The message content is assumed to be
# a string representation of the status. The topic should include the variable ${item} to indicate which part of the topic contains the
# item name which can be used for posting the received value to the event bus.
stateSubscribeTopic=mosquitto/stateUpdates/${item}/state

# When available, all commands received on this topic will be posted to the openHAB event bus. The message content is assumed to be a
# string representation of the command. The topic should include the variable ${item} to indicate which part of the topic contains the
# item name which can be used for posting the received value to the event bus.
commandSubscribeTopic=mosquitto/commandUpdates/${item}/command

Here is what I get when I subscribe to the topic with the eventbus file above.

Client mosqsub/12310-raspberry received PUBLISH (d0, q0, r0, m0, 'mysgateway-in/mqttsw1', ... (3 bytes))
OFF
Client mosqsub/12310-raspberry received PUBLISH (d0, q0, r0, m0, 'mysgateway-in/mqttsw1', ... (2 bytes))
ON

Of course it doesnt work because it is using the name of the device instead of "mysgateway-in/5/0/1/0/2" for this instance.

Any clue what I can be doing wrong? I just cant seem to find anything on the web to help me out with this and I am sure its something simple.