When I duplicate my text box, or simply finish writing in it, a “bug” appears with only part of the text box duplicated, which remains there and cannot be removed. It also happens that I write in a text box, go to another document in GoodNotes, and when I return to the document I wrote in, the text box is no longer there. I always use GoodNotes for my studies in my IPad, and it's very frustrating when I go to use the app for my studies and waste time stressing over these issues. In the end, the app I paid for to facilitate and optimize my studies is actually getting in the way.