Calculate accruals not calculating accrual as of hire date for employee hired backdated as of 2007

Summary:

I have a accrual matrix fast formula attached to a absence accrual plan. But I have noticed that the accrual when run for a employee who is hired in the past for e.g. if someone is hired on 01/Jan/2007 and I run the accrual as of hire date it doesn't trigger the fast formula and accrual processing. The accrual calculation is only being triggered starting 2016. I am not sure what's the reason. Please note the plan term is anniversary year while repeating period is annual front loaded. This same thing also happens for other accrual based plans which are