Veeam 4 replication stuck...

[cregan]

I migrated from v3 to v4 yesterday. Now I have two replication job (VCB SAN) that won't finish.
In veeam console it's stuck at :
Constructing rollback file name

A replica.vbk.upgrade was created if I look inside my lun.
The VM was reloaded if I look in Tasks and Events inside VirtualCenter.

In veeam log i have thousand of error like this
<06> Info (Client) Service output: available space:228916723712 bytes on /vmfs/volumes/SAN2-600HI\n

What's wrong ?

[Gostev]

Hello, we will need the logs for this job from Help | Support information to investigate. Please compress and send them to support@veeam.com