I just applied the hotfix to by development environment
FOEX 126.96.36.1991 most recent hotfix
With an editable grid that worked fine prior to the hotfix, now when a new record is created, upon pressing the "update" button, I get the following error:
ORA-20082: The grid primary key has not been setORA-06512: at "FOEX_020200.FX_P_GRID_CRUD", line 1046 ORA-06512: at "FOEX_020200.FX_P_GRID", line 6146
The primary key is correctly chosen as the ID field for the table.
I am now rolling back the hotfix.