Schedule is missing

Hi all, I have 3 schedules set up in Schedule Administration that cannot be viewed for editing or deleting. I know they are set up because when I attempt to add another one with the same name I receive a message that says "A schedule with the same name already exists". Has anyone experienced this before and if so, how did you remedy? I was wondering if there was a limit to the number of schedules that appear on a page, as I do have many, but there is not a "page 2" option to view more schedules if that were the case. Thanks for your input!