When a new Default Work Type is added, it is not added to all projects by default. It's helpful to think about Default Work Types like a pool of potential work types that a project can use. If you add a new Default Work Type, it will not show up in your project until you edit the project and add the new work type. To attach the new work type to a project you have to edit the project, click ‘add another work type’ and it will show up as a new option.
We built it this way so that you don't all of a sudden get new work types in every project you have already created. This gives you greater control over which work types are used in your projects.
For example, say you add Copywriting as a default Work Type but only 10% of your projects need Copywriting. Instead of having Copywriting show up in all of your projects, you can edit the projects that need Copywriting. This way time is not submitted for a type of work that shouldn't be in your project and the drop down menus are nice and small.