.spi and .md5 files are from different dates

Hi,

We are using shadowm craft shadow protect version 5.0.3 and while we do the monthly backups, the files for Eg:

D_VOL-b001-i714-cd-cm-md5 and D_VOL-b001-i714-cd-cm-spi files are backed up at different dates and time. 

D_VOL-b001-i714-cd-cm-md5 was backup on 21st June and D_VOL-b001-i714-cd-cm-spi was backed up on 23rd June. Please let me know if these files are correct.