I'm having an odd situation where attacking demolishers arrive already fed and thus immune to being fed. This includes the very first feeding missile fired. This is a returning demolisher, and I have additional time between demolisher attacks set to an additional 20 minutes, if that possibly is a contributing factor.

I have loaded a save and tested this, ensuring that the medium demolisher was fed by roughly 10 missiles, all of which reported it could not be fed again since it was already full. It did not stop or turn, despite having to travel around another 8 16x16 squares after being fed. It only turned around in the center of the base like a normal attacking demolisher.

I have a save with a perfect example set up, a small demolisher about to be hit with two feeding missiles. It has a lot of mods on the save, I'm afraid, but nothing that affects enemy behavior. Would that be helpful?

As the save continues it will proceed into the base and tear it apart, far past the point where it was hit with missiles.

What you're describing sounds like a bug, but I can't imagine how it could occur
Provide a link to your save

I would really like to fix the possible bug with demolishers, since in the next update, the mechanics of feeding demolishers will be expanded and will start giving useful items

Here's a google drive link, let me know if it poses any problems.

https://drive.google.com/file/d/1o-pcE2ULXQa0mP6HfrL5LsWOOILH6QkH/view?usp=sharing

Since then I have encountered this several more times, it appears to affect specific demolishers, once it occurs once, that specific demolisher cannot be fed again. A very rough guess is that perhaps the flag that makes a demolisher 'full' is not being cleared, meaning that when the demolisher attacks it cannot be fed and thus appeased. (I have also noticed, for all demolishers, that it takes quite a while after being fed before they turn around, but I assumed that was just normal behavior.)

I have a second save with, again, a perfect setup of a demolisher, this time a medium size one, heading into missile turrets and saying it is already fed and continuing onward.

https://drive.google.com/file/d/1S6cZFXEYSgaKgX_2V2WlHMZNRCxepiu5/view?usp=sharing

Unfortunately, google closed the download for those who don't have an account.
I suggest using this site: https://dropmefiles.com/

Ah, my bad, I so rarely run into someone who doesn't have a google account. Here's a dropme link for both saves.

https://dropmefiles.com/T9maT

Fixed. Release is ready

I'm glad it was something fixable. If you have time, I'm curious, what did it turn out to be?

When I added the hunger level, I forgot to add it for a second+ attack if the demolisher survived. And the rocket thought the demolisher wasn't hungry
I haven't encountered this because after feeding the demolisher usually died on the defense line. Because the attack didn't stop immediately

Ah...whereas I have no defense line, since I am relying on feeding to get them to leave me be until I get better weapons.

Btw, I had another demolisher do the ignoring food thing after the patch, but I'm guessing that's just a 'left-over' from the last attack. I believe he is one who has been fed before the patch. I'm assuming what you changed likely wouldn't correct retroactively.