Monster disappeared

When I completed an online event I noticed that my three monster got disappeared . They were not anywhere . What the matter I really can’t understand. Please help.

On one of your teams click reset and then try to search them. I had an issue before, where some monsters could be placed over others in the team.

I m still having that problem

Now I have resolved it

My wraithhost disappeared once. Scared the ____ out of me as I love that little guy. Restated the app and it was there again. Disaster averted lol.