Unable to exchange showdown set

[kel_jun13]

Have exchanged 80 joe ingles. But when I want to exchange 83 joe ingles, the 80 joe ingles does not appear. Is that a glitch? I tried to remove 80 joe ingles from my team, but it doesn’t work too.  Help!!!!! 

[1Kannon]

I’m having the exact same problem right now and I don’t know what to do