Minions disappeared

My minions disappeared the next day after upgrading them. Is there any way to get them back or does some minions really disappear after upgrading them but not evolving. Most of my minions disappeared but not Nanachi, Viola and Arch Kurebiel

 

where did you get the minions from ?

 

If it's from arcade , byebye minions

 

What minions did you lose? Tested Modor, Sheba and a few more and they are still in my minion list after upgrading.

 

I got most of my minions from Daishunerk's Game of Fate(Luna Shop). But if they really do disappear then why didn't all of them disappeared, I still got Viola, Sheba, Modor and some random minions. Even the Reg minion I got from cute minion contract that I bought from the webshop also disappeared. I got another Reg minion from Daishunerk's Game of Fate earlier and after logging out/logging in its gone again and the ones that didn't disappeared before is still there.

I guess I really don't mind much since I still haven't used grade a minium yet. But what if I did used some to evolve my minions, that would be such a waste so I just want to know how and why it happens so I can prevent it from happening again.

I lost a lot and most of them are from the luna shop. Reg, Riko, Nanachi, Marulk, Hyperion, Kromede and a lot more.

 

They’re not lost, they’re just despawning

This happens to me