[NSFW] Archi Theme Image

Hello：
I`d like to ask the question of “Archi Theme”(https://reurl.cc/x9OgOE）.
Cause I used the default Element of [OT Before After Box] in WPBakery Page Builder , but it doesn`t work.
so I installed the plugin of “Twenty20 Image Before-After”(https://reurl.cc/Rrj6Xn) in prtfolio Pgae.
When I open to the page first time, it doesn`t work,but when I turn to other page and turn back, it works.
Sample Page：https://zhupin-design.com/project/ （the first portfolio on left top conner）
So i wanna ask how to fix it?
my php version is 7.4, and WordPress version is 5.9.3.Thank you!

The page I need help with: [log in to see the link]