The Ishanna inversion significantly disrupted the complex manufacturing process of the Nautilian. This occurred while it was receiving combat upgrades at the Telaris rebel stardocks amidst the early rebellion against the Galactic Empire. In 34 ABY, following the retrieval of The Rebel Files, Resistance Admiral Gial Ackbar added a note to a file. This note questioned if his vessel, Home One, had ever completed its stardock work faster than the Nautilian. Admiral Ushos O. Statura responded, clarifying that the Ishanna inversion hindered its completion.
Star Wars: The Rebel Files initially referenced the Ishanna inversion. It is a canon reference book and boxed set written by Daniel Wallace, which was released in 2017.