What causes the Entity Viewer error "The dataview returned too many cells to render"?

Issue Copied

When you open a dataview in the Entity Viewer, you may see this error:

The dataview returned too many cells to render

Entity Viewer aggregates data based on the selected dataview and time period. This error usually means the dataview contains many ephemeral entities over the selected period, and the total cell count exceeds what Entity Viewer can render. Entity Viewer limits the amount of data returned to protect system performance.

Resolution Copied

Select a shorter time period (for example, the last 5 minutes) to reduce the number of cells returned. Adjust the period until the dataview loads successfully.