ESPAltherma MQTT and ONETOPIC config

Hi all, I was trying to get more sensors from my Daikin Altherma and I fleshed an esp32 with the ESPAltherma ESPAltherma | Monitor your Daikin Altherma / ROTEX heat pump with ESP32 Configured and all good I can see MQTT messages on my home assistant.

Now, to avoid having a single json blob with all sensors, I’ve activated the option

#define ONEVAL_ONETOPIC
#define MQTT_OneTopic "espaltherma/OneATTR/" //Keep the ending "/" !!

as described in the README and I can see messages flowing on that topic each with a sensor with its values.
Now the issue is that the moment I go in the “main” entity, I cannot see it subscribed to the OneATTR topic and so all those attributes get lost.

I wonder if anyone faced this before and what are the possible solutions to fix it? What I want to achieve is to have automatically all the attributes mapped to the ESPAltherma entity that are coming from MQTT. Or even better have a sensor for each of those attributes…
I thought of changing the topic to just be ATTR as that seems to be read (see image below) but I’m not sure whether that’s gonna override the attribute as new messages are received?