Want to keep only 2021 Year Values only Please help And respond ASAP.

Hi there,

I'm attching my work book in current and 10.5 version in My first dash board grid page in the workbook( i want only 2021 data only. But while i filter the january month it showing 2020 year data as well and 2097 year data due to the corrupted value of Md data & time. please help Asap.I'm attaching screenshots as well.

Thanks

surya