Automatic addition of search engines not working

Description of the issue:

It used to be that when I used a search box in a page or just visited the page, it was automatically added to my search engines in the settings after just using it once.

Now, this isn’t happening for whatever reason. I have tried making many searches in the page I want to add as a search engine, but it won’t add itself. I don’t have that extension that prevents the browser from adding new search engines, so it’s not that.

Expected result:

Search engines automatically added, where I just have to edit the keyword and am good to go to start using them.

Reproduces how often:

So far, with all the pages I have tried.

Operating System and Brave Version(See the About Brave page in the main menu):

MacOS Mojave 10.14.6

Brave Version 0.70.121 Chromium: 78.0.3904.70 (Official Build) (64-bit)

Any example site/s, @Engines_Warrior? AFAIK, that site need to support Chromium’s Open Search in order to be detected and added automatically as search engine.