i followed the documentation https://doc.sitecore.com/developers/sxa/93/sitecore-experience-accelerator/en/copy-and-customize-a-rendering.html and cloned a Page Content rendering. The script finished, i am seeing everything and my rendering is also occuring in the toolbox. But when adding it to a placeholder it stays empty and i can't select renderingvariants. I looked in the content tree and see that those renderingvariants are missing. I've done it multiple times and every try the same result. I was wondering if i am the only one who is facing this problem. Can you please help me?