Cross will delete Genre after Analyzing

To everybody in the Forum.
My Problem is as followed:
At the moment i have editing my mp3s with mp3tag and i will give them a command also bpm and my personal genre. And i will use them in DVS 7.
So what happens now. I was installed Cross. I was load the same folder into Cross. So now i have to analyze the mp3s again that you will see the Mixvibes Logo when you was analyze the peak and the file. So if Cross will finished this process he will delete my Genre Infos. But not at all mp3s but a lot of them. If i will go back to mp3tag to check the folder. I will see that of sure the Genre Info was delete. So i have to rename the genre again. After that i go back to Cross and read the tag again and now it will stay and not will deleted.
So how comes that some of my mp3s are will be deleted in point of my Genre infos when i will reanalyzed the mp3s.
Thanks For help.
Poertsch
My Problem is as followed:
At the moment i have editing my mp3s with mp3tag and i will give them a command also bpm and my personal genre. And i will use them in DVS 7.
So what happens now. I was installed Cross. I was load the same folder into Cross. So now i have to analyze the mp3s again that you will see the Mixvibes Logo when you was analyze the peak and the file. So if Cross will finished this process he will delete my Genre Infos. But not at all mp3s but a lot of them. If i will go back to mp3tag to check the folder. I will see that of sure the Genre Info was delete. So i have to rename the genre again. After that i go back to Cross and read the tag again and now it will stay and not will deleted.
So how comes that some of my mp3s are will be deleted in point of my Genre infos when i will reanalyzed the mp3s.
Thanks For help.
Poertsch