For some reason whenever I enable IR3 Assets in Mod List the reskinned Assemblers (1 to 3) lose a lot of recipes. For example even basic Green Circuits are lost and are available to be crafted only in EM Plant from Fulgora. Any idea why?

Ok, so I narrowed it down a bit. IR3 Assets (1-4) does nothing obviously. There is some issues in recipes in this mod.
Maybe something with:

    crafting_categories = { "crafting", "basic-crafting", "advanced-crafting" },

In https://wiki.factorio.com/Data.raw#recipe-category there are way more categories including electronics, which assemblers should have?

Thank you for the report, I am investigating now.

The Space Age recipe/crafting categories were not added to the assembling machines. Version 0.0.6 has been uploaded, it should resolve the issue.

Thank you for the quick fix! :)