Object spy changed from 7.5.5 to 7.91

Hello community
in version 7.5.5 I was able to spy a lot of objects very quickly in the spy web mode. The reason: I did spy an Object after an Object and at the end I had ONE iframeObject. After that I saved all the Objects in the Repository.
Now with 7.9.1 I spy an Object and when I spy the second Object the first Object will be deleted or ist no longer shown. If I do that on my private computer and with another Software under Test I do not have this problem.
Can someone help me