Wait for the next refresh interval after opening Overview or waking the Mac.
Reconnect external disks and network interfaces whose status you expect to see. Finish transitions between Wi‑Fi, Ethernet, VPN, battery, and power adapters.
Close and reopen Overview. If a value remains frozen, quit and reopen diCleaner, then restart the Mac.
Compare with macOS tools under the same conditions. Small timing and rounding differences are normal.
Persistent stale readings should be reported with the section, duration, Mac model, macOS version, and diCleaner version.