Importing a Gen2 (plan = "standard-gen2") ibmdatabase instance — via an import {} block or terraform import — always failed with a misleading: Error: [ERROR] The database instance was not found in the region set for the Provider, or the default of us-south. The instance genuinely existed in the correct region. Root cause, identified in the thread: pickResourceBackend in resourceibm_database.go dispatches on d.Get("plan"), but during import-driven Read the plan field is not yet populated, so it always falls through to the Gen1 (classic) backend, whose Gen1-specific GetDeploymentInfo 404s on a Gen2 deployment.