I hope you are well today and thank you for your question.
I have tested it on my test site and it’s displaying in lightbox for me using latest version of Jevelin theme as displayed in the attached screenshot.
Do you not get this result?
Could you please share me the page URL from your site where it is not displaying correctly so that i can troubleshoot it?
You are most welcome here 🙂
To help us keep support thread separates could you please create new thread for each of your other questions instead of asking them in your single thread as it makes the thread messy and hard to read.
If you want to you can also add reference of this thread in your newly created thread.
We would be more than happy to help you on your new thread.