When the boat is full the fishing boat crashes against fish and loses health, which makes it hard to navigate once fish bred a lot

Hi, thanks for reporting, that is not supposed to happen, getting right on it.

Edit: I can't reproduce the problem, could you send a mod list or a save file?

Thanks for looking into it! It seems this is not only the case when the boat is full after further observation.

Let me see what's the best way to share a save file.

I am using All the Overhaul Mod mudpack and Dredgeworks as well as cargo ships and the pirate ship mod (it adds the galeon ship).

Hey,

I checked some of these.
It is most possibly from the Overhaul modpack.
Cargo ships, canal-excavator, galleon, are all compatible. Dredgeworks was compatible as well.

Edit: Space Exploration postprocess, changes the collision layers of fish:

-- please stop the space fish
for _, fish in pairs(data.raw.fish) do
  if not string.find(fish.name, "space", 1, true) then
    if not fish.collision_mask then
      fish.collision_mask = {
        layers = { ["ground_tile"] = true }
      }
    end
    fish.collision_mask.layers[space_collision_layer] = true
  end
end

Cargo-ships are affected by this as well.
You can refer to this code piece if you wish to report this to Earendel.
I could only locate the source of the issue from this side.

Thank you for looking into this, really appreciate it. I'll report it than to Space Exploration. Thank you again!

Cheers!
Feel free to ask if you got any other problems.