Period End Process - Current and one future period understanding

SOLVED

The current period is 11-2021, but when I tested to change the accounting date to 1/5/2022, the box message said 1/5/2022 does not fall within the current and one future period for the module (10/1/2021 to 11/30/2021). I expect the current and one future period should be 11/1/2021 to 12/31/2021. What did I miss? Please help!