Help with an App and a new HP Prime

[catc296]

Hey guys!

I'm new to this forum and also to HP calculators, I'm an engineering student and I just bought my new HP Prime like a month ago and I have been enjoying it a lot.

But I have a Problem which is kind of big for me ...

So basically in my Thermodynamics class we use an app to calculate Steam tables and other values, it's a simple App you just input some of the steam table data and it completes the rest of the table.

But in my calculator and some other new ones too the app won't show results, once you type in everything and hit results it won't show anything but a blank screen, everything but that seems to work fine (graphs and interpolation).

Does anyone have a general idea why this maybe happening and how I can fix it??
Maybe it's something in the code or with the firmware of the calculator?
I have a test on Thursday and I need to fix that

I would really appreciate any kind of advise!! Cheers!!