EV client - problems opening archived items

EV Client 10.0.1, EV server version 9.0.0.

Some users have problems when opening same archived e-mail more than one time.

First time they open the archived e-mail in outlook (dobbel-click), it is opening as usual.
Next time, only the shortcut is opened.

If the user try another archived e-mail, this is opening fine the first time, then this is failing as well.

The same problem occurs from Archive Explorer and Archive Search,

I did set the tracing to max on the client, and in this log I can see the URL to the archived item. If I copy this URL to IE, I can open the archived item several times without problems.

Any tips on this problem?