Hi,

This might be a bit of a hard case to debug but I can't add overclock modules into assembly machines, electric furnaces, etc. anymore, while playing with the following mods and their dependencies:
- Metal and Stars,
- Moshine,
- Better StarMap Background.

The issue goes away if I disable either Moshine or Better StarMap Background, so I don't really know which mod is the 'culprit'.

Here's an example on a new sandbox world with these 3 mods enabled:
https://imgur.com/a/wal3S6q

I don't have the better starmap mod enabled, but I'm getting the same issue. A weird thing you can do is in the editor, you can copy an entity that had overclock modules in it and it will copy the modules into the newly created entity. Works with rocket silos at least. Not sure when these modules became unusable, because the buildings in my factory that already had overclock modules in them kept them and retained the productivity bonus.

The issue goes away if I disable either Moshine or Better StarMap Background, so I don't really know which mod is the 'culprit'.

I turned off Moshine (just the main mod) and left on all dependencies and the issue went away. Might be something to do with the main Moshine mod. Did not test starmap background so I don't know about that one. Hope this helps a bit.

this sounds like an issue with Moshine. I'd ask the maintainer of that mod to take a look. If I get some time I'll see if I can compat it on my side

Hi, I'll check ASAP

Ok this was indeed a problem with my mod, I'm doing a fix.
I have a script to manually add every module category to all the buildings that don't have "allowed_module_category" (which is the default behavior, but it then allows me to restrict my own module category for most buildings), but when I moved it to data-final-fixes, I forgot to remove from data, which means every mod loaded after mine would not have their "module category" added to my list and thus also be restricted from all buildings.

I've pushed a fix on my side : )

Thanks!