model prompt is executed when using assist in web browser but not on other satellites

[Makrokaba]

Hi community,

I have setup a seperate AI-Server running Ollama and OpenWebUI. I also setup assist in Home Assistant with Home-LLM to use the Gemma2:27b model. That works like a charm, is able to control my devices and answer questions as long as I use the Webbrowser for interaction.

Now to my problem: When using the Home assistant companion app or a ESP32-S3-Box-3 for interaction with the assistant the model prompt is not executed. I can tell by asking the model for the date and time or device stati.

So it works in the browser but not on other voice satellites.
Any ideas where I can look further to solve this problem?