failed to use update 2013 to 2015

after updating (and getting the newest version from the acronis server) I recognized that consolidation is not supported in 2015. I cant understand this. The I run an System backup to an external USB-disk and the space was insufficient. After stopping the backup process the system agonizes the user with nonsense error messages like

"file not found"
"cant find backup set"
...

I followed all hints and wasn't able to resolve the problem. Then I decided to remove the 2015 version from my computer and - guess what - everything is fine.

OK, I invested appox 50US$ for nothing

I wouldn't recommend acronis 2015
I am really satisfied with the version 2013
I am a rather experienced user
I dislike to be a beta tester for big companies

Gottfried Schaffar