I'm dealing with a weird and very annoying bug where changes to a page template file ("contact.php") are not being registered at all by WordPress.
I've made sure that the template has been correctly selected by the pages that are supposed to use it. The pages also clearly use the layout specified by the template, but they don't register any changes, even when I add huge globs of texts in the middle. Nothing shows up. This problem applies to every new page I create, as well as old pages I modify.
I don't have any caching plugins installed, so I am at a loss as to why this is the case. Changes to other parts of the website (for example, header.php) show up just fine. Switching to another theme then switching back doesn't help either. This is immensely frustrating, and I'd be grateful for any help.