There is a NetSuite bug that prevents criteria such as Name/ID starting with " " from to fail when called via a NetSuite API.
Reason of Error
Saved search has criteria set with null values.
It will result in an error message similar to:
An nlobjSearchFilter contains an invalid operator, or is not in proper syntax
👉 See other common errors encountered when downloading Saved Searches from NetSuite.
The workaround is to remove this line from your saved search.