Did you recently upgrade to QB 2019?  I did and am having the same issue.  My YTD Sick time is showing the calculation from the date of hire instead of January 1 (YTD), and my Vacation YTD accrued isn't showing at all.  The "Current" accruals are correct, but the YTD's are not.  Did you find a fix for this?  I was on the phone with QB Customer Service for literally 2 hours yesterday and they had no idea what was causing it.  It was very frustrating.