Hello, WebsiteDude,
As you may see on the next screenshot -> https://prnt.sc/VXeojL0MAr66 we make reinit for sticky columns in a few JS document triggers. Could you give us information about what are the triggers of your plugin when customers select product variation (because once the product variation is chosen the height of content is increased/decreased and the sticky column should refresh its position)?
P.S. Maybe it is the case when you may use the default Single product template but not the builder one. I decided to advise such idea of using non-single builder template because your Single product content is very simple and looks like the one we have in ready templates -> https://prnt.sc/n5Q0RB255rzO
Kind Regards,
8theme team