'Too Late' is so self-explanatory, it does not obviate a visit to the Start Here FAQ's. But, if you do, you will find that credit is granted notwithstanding.

(A real 'Too Late' status at WCG is technically not possible... you'd get a 'Result no-longer usable' status report in the BOINC Manager Event log, meaning the canonical result was already moved to archive.)

Chris,

It looks as though your copy of the workunit processed correctly (assuming no obvious problems in the Result Log - click on "Too Late") but that all the others errored out immediately. In these circumstances, the correct unit gets the Too Late status because there isn't any other suitable status and gets looked at behind the scenes. A script gets run (every day?) to assign credit.

Do read the bit about Too Late in the FAQ that Rob referred to.