"First Win of the Day" mission keeps disappearing

Like the title says. After patiently waiting 12h hours for the mission to re-set so I can continue grinding XP, I find that it is no longer in my mission tab. This isn't the first time the mission has disappeared and it's really frustrating since this screws over with my farming plan. Now, instead of doing the mission at 2am and then later tomorrow at 2pm, I will just do it at 2pm (hopefully) since I can't stay awake any longer. Of course, there is no guarantee that the mission will be there when I wake up tomorrow but hey, what ever. It's just 575xp I am losing here, right? Here is an SS which proves I'm not just spewing random shit: https://imgur.com/a/WPvL9
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