If you have a minute and you want to verify this bug:
Steps to reproduce:
1- Create a Transaction Saved Search.
2- Set a filter: Type -> to Sales Order.
3- Set a filter: Special Order:
4- Click the arrow to load the list of special orders; for example, if you want to set this filter to any of -> None, you must go via this pop-up (this is the only way I know).
5- Open your browser console.
6- Enjoy NetSuite bug:
• Uncaught ReferenceError: ListTransaction_SPECIALORDER is not defined.
• Failed to load resource: the server responded with a status of 500 ().
• GET https://123456.app.netsuite.com/app/common/search/search.nl?ifrmcntnr=T&filter=Transaction_SPECIALORDER&searchtype=Transaction&q=Transaction_SPECIALORDER&l=T&t=main:Transaction_SPECIALORDER 500 (Internal Server Error).
This is true in Production and Sandbox.