Dears,
After upgrade to Oracle APEX 21.2.1
when a dynamic action on popup LOV have client side item is null the condition not see the null see it as value.
Example:
Item P1_CODE popup lov (
Null Display Value="all"
Null Return Value=
)
dynamic action on change P1_CODE Client-side Condition item is null
true action not fire if null selected.
change the popup lov to select list with same attribute it work perfect ..
in the previous version it was working fine with popup lov