Are you positive that you did not accidentally choose too high of a hitpoints to eat at, causing it to always trigger eating?
If not, please send me a message on Discord.
Which food are you using? Try Lobsters if you're not using those and let me know if that works better. As for the latter; currently there is no way for this to be changed on your end I'm afraid.
It automatically progresses through different objects when leveling up. But it's honestly in beta and not entirely stable so if you encounter issues with it, its best to stick to the regular mode.
Apologies for the delayed response, was with friends & family.
Did you read the startup instructions as per the OP and follow them for 100%? The majority of all supposed issues with the butler mode are caused by improper setup.