Depends. If your application has been submitted (such as mine for fellowships), then your USMLE transcript will only show what was present on the day you submitted your application. If you submit (and pay) September 15th, then your USMLE transcript will show all the scores that have been released up to that date--so a score that came back in August would be there. However, if you have a score come back after you submit your application, you have to manually reauthorize the release of your transcript to transmit those updated scores.