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If the organization chart is still not rendering, please check the configuration of it (via Confluence Administration - Organization Charts). The field for the manager must be selected in the "General Configuration". Furthermore in the section "User Profile Configuration" the checkbox for "Display Organization Chart" must be checked.
It may be, that the organization chart does not contain any information yet. Organization charts are stored in a cache, which is refreshed periodically (if needed). This means that the organization charts displayed by the macro will not be up to date until the cache is refreshed. The default refresh period is 30 minutes. Depending on how many users are in your instance, the refresh itself may take from some milliseconds for less then 100 users up to several minutes for 10k users or more.
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