How close are you to the limits? If you are too close, you are SOL also.
Another issue I have run into over the years is the order of the accrual logic. Let's say the employee is so close to the limit, that nothing will accrue. But the employee takes a 40 hour vacation during the pay period which will lower the balance signicantly. Logically, you would think the employee would accrue some benefit hours on this paycheck. Sorry, you are SOL for that paycheck. The next paycheck will accrue hours, but not this one.
The problem is with the code and the when it looks at the accrual limit. The code makes the accrual limit comparison PRIOR to being paid the 40 hours vacation. It should be modified so that the 40 hour vacation pay is deducted from the limit prior to making the comparison.
I posted this on the idea web site several years ago, but surprisingly, it hasn;t been scheduled for modification. Shocking, just shocking!!!!