MQTT Discovery Issues with Openbeaken-Flashed 2 Gang Relay on Hass Config Page

I have flashed the device with openbeacon. The device is working and I'm able to listen and set the MQTT topics from Hass MQTT config page. The relays are responding well! But the device is not getting discovered. What am I missing?

Hello, do you click "Start home assistant discovery"?

Yes, I did! It shows, MQTT discovery queued.

What do you have in HA logs?

Ah, thanks for pointing that out! I don't know why it's taking space between characters!

Received message on illegal discovery topic 'homeassistant/switch/Wall Switch 2 gang_relay_0/config'. The topic contains not allowed characters. For more information, see https://www.home-assistant.io/integrations/mqtt/#discovery-topic
9:19:31 AM – (WARNING) MQTT - message first occurred at August 28, 2023, at 5:16:52 PM and shows up 6 times

Added after 1 [minutes]:

Even in the obk, it shows like this!
mqtt:
switch:
- unique_id: "Wall Switch 2 gang_relay_0"
name: 0
state_topic: "obk_wall_switch/0/get"
command_topic: "obk_wall_switch/0/set"
qos: 1
payload_on: 1
payload_off: 0
retain: true
availability:
- topic: "obk_wall_switch/connected"
- unique_id: "Wall Switch 2 gang_relay_1"
name: 1
state_topic: "obk_wall_switch/1/get"
command_topic: "obk_wall_switch/1/set"
qos: 1
payload_on: 1
payload_off: 0
retain: true
availability:
- topic: "obk_wall_switch/connected"

Added after 2 [minutes]:

I think I found out.. in the device naming, I used spaces

Hmm so Home Assistant doesn't like spaces? It's good to know.

I can submit a fix for the core firmware so it does not allow spaces in the names. It could replace them automatically with underscores.

Yes, I removed the spaces from "Full Name" and clicked on the discover again. Now the device popped up on HA!
I should have checked the log earlier, hehe!
Thanks for the help though!

Thank you, I was not aware about the whitespaces issue. I will submit a fix tomorrow to the main repository tree.

Starting with 1.17.238 version of OBK, a safety check has been added to make HA discovery work even if you tried to put spaces in the names.

Sounds Great! Thank you