We had a similar problem until we changed all
double precision fields into numeric(18,4)
It may be something else in your application.
The fastest way to change all this was to
declare a new domain :

CREATE DOMAIN "T_CURRENCY" AS NUMERIC(18, 4);

and in metadata now we have :

"CREDIT" T_CURRENCY ,

INSTEAD OF

"CREDIT" DOUBLE PRECISION,


Now it works flawlessly.

Hope that helped

Nx