FJ Software

I noticed a peculiar phenomena:
When I'm looking at the Files | Applications section, in the installed column, randomly, various Apps has their installed date modified to today even though it wasn't updated.
Not a major issue but a nuisance.
Why is it happening?

In my opinion, this has nothing to do with MPE. The data of the apps are only loaded by the phone...

No, its not, since you can see in the Play Store which Apps were updated and while in MPE it says Today (as I said, random Apps) in the Play Store those Apps were not updated.