HA MQTT plugin for single model

[s1godfrey]

I'm very new to FPP. I installed the Home Assistant plugin and was able to discover in MQTT a model I selected. 

This model is on its on controller and separate from my house lights controller. However, when I assign an effect to it, the WLED effects running on my house lights controller go into DDP streaming mode. 

The model is for my 'staircase' lights which is on a ESP32 running wled. My house lights are on a Dig-Octa controller which has WLED built-in and it runs ambient lights at night.

When I activate an effect in HA or in FPP using Pixel Overlay Model, just for that one selected model, it stops my house lights controller's wled effects and makes it receive DDP data which is not even part of the 'staircase' model and controller im directing the effect to be sent.

Does FPP Overlay models intentionally globally send out DDP to all connected IP address of controller regardless of intent?

Any help to understand, please..