version 4.11.3 unit price and line total missing in invoice

[R2-G]

Hi,

Thanks for the new version of this great system

Am having a problem with missing unit cost and line total on the invoice
The strange thing is that the invoice appears as expected when the customer
is not in the home currency of KSH i.e for two invoices , the one
in KSH is wrong (missing unit price / line total), but the totals are OK.
the one for USD is OK

What could I be doing wrong

Thanks in Advance