This might be a bit hard to explain, but I'll try my best.
I can easily sell my 2* units, but if I try to sell a 3*, I am unable to if she has already been on a squad. Even if she's removed, she shows up as "In Party". I've removed their equipment, but I am still not able to clear them out.



In this case, I'm trying to see Alstroe Maria, but because she was on one of my squads before, I cannot.

I noticed this when I first started playing the game about 3 months ago. Then later, I was able to sell them. Now recently, I am unable to again.

Is there anything I'm missing? Please help.