I found one reason why Odin gets stuck

[Cthulhu]

Hey guys and devs,

Odin got stuck again on my account today, and I have to wait until Tuesday to battle him again.

Since the sacrifice event started today, I had a theory: could the problem be if one sacrificed or sold characters that have already battled Odin?

I tried this out on my wife's account, which was still fully functional:

Played a battle including two golden skulls:



Went ahead and sold those skulls. They don't show at the "Used characters" line anymore.



Tried to play, and lo and behold, my wife's account is now stuck too, and she is very mad with me.



I hope this helps the devs to fix it.