Using models you like.

The model filter in Favorites does not work correctly. When selecting models of one type (e.g., Pony), it shows models of other types (e.g., Flex or SD).

Not all added models are displayed in the favorites. Only recently added models are displayed. Old models are in the favorites list and are not removed from public access; they can be found through the search. But they are not displayed in the wish list due to the limitations of the list itself.

Both of these issues have been around for quite some time, and while they used to only affect the web version, they now also appear in the mobile app and the browser-based PC version.