Gerhard,
It looks like there is a similar post on this, and someone also opened a support case on this issue.
Engineering is looking at this and trying to figure out what is going on.
If you opened a support case, great. If not, I'd recommend that you open one so that your issue can be tracked.
SnapVault works fine with Snap Creator in my 8.2 environment, so hopefully we'll get something figured out soon.
John