I've passed for the same problem...
Updated firmware - ok;
Updated HP connectivity kit -ok;
Reset the calculator - ok;
nothing solved my problem, but i've readed on HP forums one user talking about the same problem, he told in virtual HP prime the pdf Works perfectly and the fisical HP don't, he looked to configuration for both and see the difference, the digit grouping, need to be in this way to work (123,456.78) the calculator worked correctly again.
I've tested on mine HP prime and... works like magic! hahaha
So i can't imagine why the digit grouping affects the calculator this way.
Original link:
https://h30487.www3.hp.com/t5/Outros-pr ... d-p/647893in the last two replys by Rogério Polo and Tocchetto (HP forum users) we can find the answer.