My paychecks will show up in "Bill and Income Reminders" and stay there. I can enter a paycheck to the register, from the reminder section, but I need to go back and "Skip" the reminders to get them to go away. This is the case for 2 separate paychecks that were originally set up in the Paycheck Wizard many moons ago.
I'm on Windows running Quicken Classic Deluxe. I can't remember for certain but I think this started within the last year. It hasn't bothered me much as I see it an annoyance more than anything else. Since this appears to be specific to paychecks, it seems like an error state that could be addressed.