Droid-
That I can’t answer.
I can answer what happened to me in a similar case.
This same R”Y told me about working Tisha B’av before chatzos, “you won’t see any mazal in the work done”.
Sure enough, the work I did was all wrong and not only did I have to do it again, but I also had to notify all those who relied on my work that the data is bad.
(That is the only time I recall making the error I made that morning.)