It seems unlikely that a file entirely full of null characters was the output of any automated build pipeline. So I’d wager something got built, passed the CI t

It seems unlikely that a file entirely full of null characters was the output of any automated build pipeline. So I’d wager something got built, passed the CI tests, then the system broke at some point after that when the file was copied ready for deployment. But at this stage, all we are doing is speculating.