When you enable "Dynamic Options" for an Input Control's Option element, it should refetch data while typing to match the query. If an option element currently has a parent element attached it will only load data initially when the parent element's value is selected but not while typing.
When you enable "Dynamic Options" for an Input Control's Option element, it should refetch data while typing to match the query. If an option element currently has a parent element attached it will only load data initially when the parent element's value is selected but not while typing.