I have that same problem. This post was created 2 years ago! Such a basic operation to have on such a platform. HOW CAN WE DELETE A BUILD THAT WE DO NOT WANT TO HAVE LISTED IN THE TEST FLIGHT? How is this complicated to understand and to implement Apple? And why every deletion is like finding Wally on it? I will get old and my grandchildren will ask me this question, and i will not know what to answer.

Not only delete... I just commented above, i want to edit to correct something, guess what? I cannot. There must be a mystery button hidden in HTML wonders...

BAD QUALITY APPLE SOFTWARE -> Change my mind.