Fluid miners don't always extract paint from an asteroid. More specifically: they don't in a few particular squares on one particular asteroid in the attached savegame.
#[SPZ2-4747] [0.1.0-pre8-rc1] Asteroid not providing resources
stark flint
dark hedge
I noticed that both on this screenshot and on the one from the questions forum there is a shape asteroid directly adjacent (and in this case even overlapping) the paint asteroid. I'm not sure if that happens on default map generation, usually you need to increase the asteroid sizes for that to happen. Is that the case with your profile?
I suspect that maybe such overlapping could affect the miners. If from the game's perspective both asteroid types occupy the same spot, it may not always realize which kind of resource it can obtain. 🤔
stark flint
I did indeed increase the asteroid sizes in the map generation, and did consider that to be the issue. But shapez extractors can't even be placed in those spots, so the game does recognize it as a pure fluid field and not a combination of fluid and shapez. (Or maybe it doesn't work because it does indeed overlap, but only pumps can be placed because that's the one on top 🤔 )
I've played tens of worlds with different asteroids touching and haven't had this problem before, nor is it an issue with other situations like this on the same map. I'm not sure what makes these particular asteroids so different.
dark hedge
It's possible that placing a miner is performed by one part of the game engine's code, and resource extraction by another one, and they calculate the available resource in a different order, for example... But that only the developers could tell.
It should be possible to unpack the save file and see the internals, where and how exactly the asteroids are located, where they overlap. But I'm not that familiar with the format of the binary elements of the save data (particularly, the map and asteroids).
stark flint
I'm sure the developers can figure out what's happening. Meanwhile I can get my green paint elsewhere on the map. It's more of a curious thing than a hinderance. Thanks for your brainstorming on the matter though.
blazing spruce
[SPZ2-4747] [0.1.0-pre8-rc1] Asteroid not providing resources