Age calculation in ARM transactions is not correct

Hi everyone, we are using Hyperion ARM 11.1.2.3.501 version and we have an issue with age calculation for ARM transactions. We expect the day difference should be Period end date minus Transaction open date but for some transactions, we can see a differece of 1 day age. For example, our period end date is 4th Apr 2022 and for the transaction dated 27th Mar 2022 the age should be 8 but in system it is showing as 7. The calculation is correct for some transactions spread across the periods (for 28th Mar 2022, we can see a correct aging of 7). Can someone help?

Thanks,

Kiran