I've realized the real cause of this issue: Inverted Quality flips the sign of the effect of the quality effect of quality modules.

It makes sense that the engine would react by making that quality effect immune to quality, so this is not a bug.

I reproducibly obtained this effect when the GUI (Factoriopedia) is opened _by_ the chat click.

However, I can no longer reproduce this on 2.0.48.

Thanks.

Attached is the mod Planet-Hoppers 3.0.0 since I have just removed that release from the Portal.

Two bugs with launch_rocket are observed in the mod https://mods.factorio.com/mod/Planet-Hopper:

* In the attached save, launch_rocket fails to launch the player and returns false. The documentation is not exactly clear on when false will be obtained, but the player is standing near the rocket and ...

My interest was in the design of Factorio rather than how the engine implements that design. However thanks for confirming OP is not a bug (by which I mean a mistake in the implementation of the design).

It is interesting that it is a single exception among all (non-furnace, non-recycling) recipes ...

For the public record, this triggered discussions in the Factorio discord to which I will link instead of summarize: https://discord.com/channels/1396775903 ... 4754672830

Productivity modules claim to only work when producing intermediates, but this recipe seems to be the one exception in the game (excluding science packs and fluoroketone cooling for reasons.)

Actually, contra what is implied by the mod description all quality levels in that mod are positive. They all get +5 levels from what is listed, and the corresponding prototype properties are nerfed.

The bug is that a level=1 quality module and a level=3 quality module can have equal effects. This ...

If the levels of the quality chain are inverted, then unlike other modules Quality modules are insensitive to the level of their quality.

Observed in https://mods.factorio.com/mod/Inverted-Quality

EDIT: Removed images that may be more confusing than helpful.

If the level of the Normal quality is set greater than zero, then unlike most entities Normal inserters still act as if the level is zero.

This can be observed in https://mods.factorio.com/mod/Inverted-Quality

Rather than 'Crusher 2.8 MW' it would show 'Crusher 23%'.

Sure, attached is a simple save showing the effect with mod The-Foundry-Playtests v0.3.5.

The effect is observed with an assembler.

Despite the documentation (and indeed the name of the field), result_is_always_fresh=true recipes do not produce perfectly fresh items but instead items aged by how long the recipe took to craft.

This is hard to notice if the spoil timers are long but is obvious with e.g. a 10s spoil timer and a ...

If you go to Most Downloaded then check Space Age and Overhaul, the top result is Pyanodons Hard Mode, even though this is not a Space Age mod and its only dependencies that are Space Age mods are optional.

With the Factorio 2.0 update it is no longer always possible to see a production history of your force.

This is because when surfaces are deleted, their production statistics history is removed from the Global statistics view. This is (mostly!) a harmless fact for the purposes of vanilla, but ...

Edited as requested.

Game crashes on "Mutex lock failed: invalid argument" when loading a save that contains a modded silo&rocket.

Attached is the crash log and a sample save containing the silo from the mod Planet Hoppers. If you load it with only the Space Age mod, the client will crash.

Very well. I have several popular mods which restrict cargo drops under certain conditions and 'right after launch' proved to be the best UX, and while there is performance cost they seem to work fine by scanning the surface and intercepting pods.

Hi there, would it be possible to move this thread to Bug Reports? viewtopic.php?p=666517#p666517

I originally made this post in Technical Help as I initially wasn't sure if it was simply a problem on my end.

For avoidance of doubt, this is the exact configuration used. My standalones have no problem read/writing data for mods or saves based on these configurations.

/Applications/factorio-alt.app/config-path.cfg:
config-path=__PATH__executable__/../config
use-system-read-write-data-directories=false ...