Vessel

A vessel is a state in which Remnants cannot be collected. While you are in a vessel, remnants are not absorbed, so Noble Rounds gains no stacks and no ammo from them.

Noble Rounds, an exotic intrinsic perk for Lumina, spawns a remnant from each final blow. The remnant lasts 7.5 seconds and homes in on its owner within 15 meters. On impact it adds one stack, up to five, and refills ammo. Because a vessel blocks absorption, a player inside one gets no stacks from remnants.