Justifying frame or change leading causes text to change
This is happening from time to time. The hyphenation of the word inside the red stroke is removed simply by setting the text frame vertical justfication to 'Justify' or by changing the leading of the paragraph. These modifications should not mess with the text and hyphenation. When this happens, in certain circumstances, it changes the number of lines of the paragraph (see prints), causing the whole story to reflow.
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