Home Assistant Discovery Issue even After Firmware Update and MQTT Broadcast confirmed

After I flashed the firmware following this guide:
https://www.elektroda.com/rtvforum/topic4024658.html
(I don't even know what the firmware is called) and updated it to the latest build built yesterday, it does not show up in home assistant. I have confirmed using MQTT explorer that it is broadcasting. I tried following the directions "If you are using HomeAssistant, then go to Config->Home Assistant Configuration: Click "Start Home Assistant Discovery" and if your MQTT settings and networking etc are all correct the device should be found automatically" however those menus no longer exist in home assistant.
Any suggestions?

Added after 36 [minutes]:

Seems as though there is a "Home assistant configuration" button I didn't see.

So you followed:

and it still didn't pair?

Well, the first thing to check is in Home Assistant MQTT listen tool. Listen for HASS discovery topic to check is the HASS discovery data even published?

This part, however, seems strange.

shadowwizard wrote:

"If you are using HomeAssistant, then go to Config->Home Assistant Configuration: Click "Start Home Assistant Discovery" and if your MQTT settings and networking etc are all correct the device should be found automatically" however those menus no longer exist in home assistant.

Those menus are in OBK and not in Home Assistant???