Hey @Julhio, i have created a dedicated new topic here and move the post here, considering it’s CUBE related and should not be mixed with the web-based CAST discussion.
@Teki is NodeRed expert from our team, i have ring him to check and get back to you when he is available.
I saw you have same discuss in here iHost: Using ESPHome on NodeRed (without Home Assistant) - #4 by Julhio, hoping Jordan could give some help too.