The Relic Quests are a great example of poor game design

[Adeacia]

In order to upgrade the weapon, the game removes it from your inventory and replaces it with a new one. If you are equipped with it, you are then not equipped with any weapon. The game does not allow you to not have a weapon equipped. Based on what I have observed, that is the reason this happens.

[Ultimatecalibur]

In order to upgrade the weapon, the game removes it from your inventory and replaces it with a new one. If you are equipped with it, you are then not equipped with any weapon. The game does not allow you to not have a weapon equipped. Based on what I have observed, that is the reason this happens.

The problem is more that the current turn in step requires that you be in the correct class/job which requires that you be equipped with an appropriate weapon/tool so that you can turn in your relic for upgrade.

The first two steps of the Skysteel/Dragonsung tools had you exchange them at a shop which you could do as any class/job. This was a lot less aggravating.

[TheMightyMollusk]

The problem is more that the current turn in step requires that you be in the correct class/job which requires that you be equipped with an appropriate weapon/tool so that you can turn in your relic for upgrade.

The first two steps of the Skysteel/Dragonsung tools had you exchange them at a shop which you could do as any class/job. This was a lot less aggravating.

The game tracks relic quests as job quests, which requires you to be that job to complete it. And the game tracks your job by your equipped weapon. So to complete a job quest, you have to have that job's weapon equipped.

The early Dragonsung steps weren't considered quests at all, so there was no need to track it. It's a different system.