# The Numbers Look Wrong

> Four behaviours that look like bugs and are not, with the reason for each.

Source: https://behavly.io/help-center/troubleshooting/numbers-look-wrong · Behavly Help Center · Troubleshooting

- **The two visitor lists don't add up**: They count different units — people versus browsers. See [Why the two lists don't add up](https://behavly.io/help-center/user-activity/lists-dont-add-up).
- **Old rows have no pages, device or country**: Per-person facets are computed from a recent window of events. Over a long range on a busy site, older rows fall outside it. Narrow the date range.
- **Country is empty**: Country comes from edge request headers. Running against a local development environment, those headers are absent and the column is blank for everyone.
- **A contact has no activity at all**: Either they were imported and have never visited, or their events have aged out under your retention setting. Retention deletes events but keeps the person.

See also: https://behavly.io/help-center/user-activity/lists-dont-add-up, https://behavly.io/help-center/privacy/retention, https://behavly.io/help-center/insights/reading-a-date-range