If you are still on SPB 16.5, the minimum stable configuration is SPB 16.5 base + Hotfix 062. Earlier versions without Hotfix 047 or higher are known to be unstable.
Elias sighed, rubbing his eyes. He navigated to the Cadence update portal. The version number stared back at him: . It was the specific patch whispered about in forum threads—the one promised to stabilize the database integrity and smooth out the 3D viewer crashes that had plagued the team all week. orcad 165 hotfix spb 165 updates fix
Significant for early Windows 7 compatibility and PSpice frontend fixes. Hotfix 028/031: If you are still on SPB 16