I recently have upgraded to the SP 5.0. on my localhost to test it out and now that are siders ??? Whats up with that . I noticed you have a lot of post for this question. This is a major time killer. I would stay with 3 but that causes other problems . Can you please fix this problem in the next release as I see many users have this problem

https://www.google.com/search?q=slideshow+won%27t+work+in+sp+page+builder+5&oq=&aqs=chrome.0.35i39i362l2j46i39i362j35i39i362l5.1283j0j15&sourceid=chrome&ie=UTF-8