HP Prime Soft Resetting itself

[CT82716]

Hi! so i think i have a problem.

I installed some programs and applications, so far so good. but if I leave the calculator off for a few days, the calculator has nothing installed when it starts up!
the calculator has the basic programs and the system settings too, but no trace of the applications that i installed on my own. Is it intentional or is it a mistake?

Thank you in advance