Hello,

Yes, I can understand and I also get your point what you want and I test almost each and every thing related to this issue in your site. And I upload the shop.php inside your child theme not inside your parent theme. That’s why the filezilla’s screenshot did not display the date as you pointing to the parent theme whereas I override that file inside child version.

I contact to our theme developer and he confirmed that the compare.php can’t be overridden from the child theme.
Because some files linked with some other functions and requires other files functions to run, that is the reason it simply not overridden and for override those files you have to override all the other functions in other files which that specific functions or file linked.

Best Regards.