First excuse my English from google translator, I hope you can understand it.
During Season of the Seraph(Season 19). I went through the collection seasonal artifacts, and realized that I could ACQUIRE the Season 18 artifact SKELETON KEY. [url]https://ibb.co/DtyLp9W[/url]
I acquired the skeleton key, and since then it's still in my inventory, I can equip it and swap it with my current artifact but I can't delete it. [url]https://ibb.co/3dCzHtJ[/url]
It does not affect my mods or my power level in orbit at all, but it's there.
Also whenever I see the artifacts after the skeleton key, I get this visual bug. [url]https://ibb.co/rwt1WKM[/url]