I know of this bug, I want to fix it, but I just have no idea when it happens or what causes it, and as such, I cannot fix it.

if anyone here has noticed this happening, please, tell me exactly what you were doing when it happened, or better yet, provide a save file from just before/after it happened. Any information about this bug would be a huge help.

in my game, i've noticed that Nauvis is appearing in the planet list, but Arrival is not. i suspect that is not intended, is it possible you are referencing the Nauvis prototype in your mod (or haven't disabled it)? it's an amazing concept and one i've been looking for for ages. i really look forward to seeing where this is going.
I'm going to go through another playthrough to see if reloading my save after triggering "Consider your POTENTIAL" technology will unlock nauvis in the planet list

Out of curiosity, do you have a debug mode in the mod and/or a log file you can generate? Because it would probably help you figure out where in your mod certain prototypes and/or assets are being loaded

You may find this interesting: https://forums.factorio.com/viewtopic.php?t=126083

I don't ever reference Nauvis in the game's code, except when I lock it on init (which is why Nauvis doesn't appear normally). So it shouldn't happen, but there must be something in the game code happening that unlocks Nauvis for the player at some point. I just don't know when or what it is.

You may find this interesting: https://forums.factorio.com/viewtopic.php?t=126083

I'll give that a try and see if that works.

From what I understand the game requires Nauvis to be available, so maybe hiding as mentioned the forum will be enough. Though to be fair, I'm not very big into factorio modding lol

Btw is there a discord where we as players can provide better feedback and/or chat with each other about potential builds?

I don’t have a dedicated discord for this mod, but you can find me on the factorio discord. Particularly in the mod dev discussion channel. You can also dm me directly.