Characters assigned to another party problem

I have linked my PC edition and my iphone edition. But the snyc was not updated some time, so I linked them again. After that, I tried to create a team of my former characters, but it showed that these charaters were assigned to another party but actually there was no party at all and I could not to delete any of these locked characters. I try to find these characters on my PC and iphone but they are locked on both platforms and cannot be chosen at all.