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In this version 0.43. The missions will appear after you defeat Arihama.  You'll enter and talk first to the bridge crew about Galaxy missions and the missions will appear on the choice there before getting back on the tab where it is usually found. (If it doesn't do the trick just explore the galaxy and step foot in Harmonia) and wait til the choice appear in the bridge again.

they are on the Bridge under the "Missions" button