After updating to version 1657, or version 1664, (from version 1655) the format of numbers don't work:
I have many numbers whit this format:

I type a number (all the numbers in the next form have the previous format and only there are a rule to calculate the field 'Total' multipling the previous fields):

and then, when I move the focus all the numbers change:

Any time I move the focus the numbers change again:


I reinstalled version 1655 and this work perfectly.