External Reports being vertically cut off/not displaying fully in the MI iFrame viewer

There can sometimes be discrepancies in how a given External Report renders in the MI iFrame viewer vs. how the report renders in the native BI tool.

Native report example (displays correctly):

MI external report example (does not display correctly):

External Report Configuration

In this case, there was a misconfiguration for the viewer height dimensions in the External Report editor > Advanced tab > Desktop Display section

^ The recommended setting is "Automatic." However, if we are to configure a fixed height value, it should match the actual height of the dashboard in the BI tool iteself, or thereabouts. In this case, having a fixed height of 0 px caused portions of this example report to be completely hidden, while other portions were vertically scrunched where the dashboard should have been significantly taller.

We set a fixed height of 800 px in this case, and it resolved the issue. There was no longer a discrepancy in how the report showed in the BI tool vs. Metric Insights.