Ideally, the yellow sign with T indicates that the font is not available on your computer. You may try to sign out and sign in to the Creative Cloud Desktop Application and see if it brings any change.
On my Rush when I add the Title with the T! symbol to my project it just doesn't have a font assigned to it yet, so I simply assign the font I want after I place it. Most likely as they are saying it's because I don't have the original font the title was assigned when it was created. Not a problem though.