I am also having this issue. It is possibly related to its being unused for a year or so before my department got it up-and-running. But it was new to start with.
Every time it is power-cycled, it resets the date. I have it in my workflow to make sure I manually reset it every time -- but this is an enormous pain, and I frequently forget. I have worked with 5i for years previously at a different institution, and this was not a problem we encountered to my knowledge.
I'd be interested to know if anyone else is encountering this or if there is a more elegant fix identified,
Kate Gabrielli
Conservator