I was letting the owner of the store where we play each weekend get familar with Mantis, and we encountered a problem we couldn't figure out how to solve. We played a 3 round tournament but after the results for round 3 were entered he clicked pair round 4, thinking that it wouldn't matter. We got the standings as that is not affected until the next fully reported round, but when I went to close the tournament and upload the results, Mantis wouldn't let me press the Close Tournament button. After testing some things with an unsanctioned test tournament I noticed problems with cutting to top 8 if you accidentally pair for a new round as well. Since the number of rounds you play change from week to week depending on how many players show up and you're frequently short on time to get things done, it's very easy to click that button.
Surely there must be some way to delete a round from a tournament?