For us, the issue started before the 2026.1 update. We were having problems opening orders, and we managed to fix it by setting the employee record to our USA subsidiary for US customers. That change immediately solved the issue for two days. Once our system was finally updated to 2026.1, we reverted the employee record changes and everything started working normally again.
Now other users are complaining that opening the AR Aging report takes 3–5 minutes instead of the usual 10 seconds. Something is clearly happening in the backend, but NetSuite isn’t communicating anything. Opening a support case and getting someone to actually investigate feels like a waste of time. We feel stuck.