In Texas we limit absentee voting by having in person early voting. This greatly decreases the number of people needing to apply for absentee ballots. Early votes, along with all the absentee ballots already received, get counted the weekend before election day. They are then reported promptly at poll closing time on election day. In Texas most counties have completed counting votes by about 10 pm.
Same in Jersey; it is useful to me because I work the polls on election day and my new (voting, not working) district location doesn't leave me time to go home for lunch after voting.
the problem with the absentee and mailed ballots is that the printing company printed the ballots with a wrong code, and now they have to be corrected by hand before they can be re-run by the scanning machines.
How is it possible that it could happen? the ballot printed by the company that was approved and tested was replaced later with a different, incorrect ballot. Horrifying!