Wrong Mythirian from gala quest

[Stranded]

I could have sworn to have clicked the right myth but got the strength instead of focus from Benan Nolani.

Can someone help swap?

[Rtha]

You likely didn't unselect the other reward first. First click locks it. If you want to select a different one, you have to unlock it first by clicking the same one again.

The quest is repeatable. Just do it again and pick a different one.