A text may wrap wrongly around a central image, when the variable leading is on in the text, and the distribution of the variable leading was not yet applied.

As soon as you apply the variable leading distribution (while in text editing, press SHIFT+F8, or on the Tools menu, point to Fitting and then click Distribute Variable Leading, the text flow improves.

If you want to get rid of a half-empty line in the right column under the box (the line that starts with "omnis divisa", we recommend that you reduce slightly the height of the image for about 1pt or less, e.g. from 101.28pt to 100.34: