u/Grand-Might-6337

I don't really understand how this works.

I have some manga file as a zip folder. If I open the zip, it opens fine. if I right click, open with yacreader—a manga reader, it also opens fine. But if I right click, open with yacreader and set it as default, I get the Apple could not verify error.

The same error happened with csv files. Open with default text editor, worked fine. Right click, open with libreoffice, also no problem. Right click, set libreoffice as default, I get that error again. Makes no sense to me logically? Is apple trying to make me confirm I want to set it as default or something?