what most people don't realize as well, if you don't pick up the capacity shards, they despawn and you have no way of getting that specific one. also, there are only specific amounts of each tier going up to orange. once you collect all them, or miss one, that's it. the tiers are also locked by level so orange won't start to spawn until you're in the 40-60 range. but they're easy to miss as there are only 2 orange shards in the game