Because on PC You can queue 2 projects (Espically handy for Events) in an active slot The introduction of the Console interface where you can only see the 1st projeect in the queue means that if you queue a gear project then queue a second different gear project (aware or unaware) you are unable to correct this and queue the project in the other active slot.
However Changing this to only allow 1 project queued per slot will delete past events from the events slot if people have them slotted but not yet started in the second slot of an active project
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