Checking centralized managed vault forever on localhost/management server

Greetings.

I am running acronis advanced backup and recovery 10 (10.0.11105) on windows server 2008 R2 enterprise 64 bit. I have a acronis management server with large local storage mounted as Q: on this server (no AD). And i use this local drive as the only storage-node. and this storage node as the only centralized managed vault.

I have backups working towards this node from 4 different server.

But when i try to do a disk backup of the OS disk C: on the management/storagenode/vault server itself, i am unable to see the contents of the vault.

- how to reproduce. -
connect to mangement server
find physical machines
locate the management server
create new backup plan
enter "where to backup" and browse to the centralized vault.
notice that size/free space and archive name list contains "loading..." you never get the list of archives. i have left it searching over night with no result or error.

if you enter a name in the bottom name field and click ok , you get a popup progress bar that keeps on scrolling with the text "checking vault..."

If i do the same on a different machine (only remote agent) via management console. the vault archives show immidiatly. and i can easily create the backup plan.
I can see the contents of the vault in dashboard, and the vault and storage-node from the mangement server. only when creating a backup is this a problem.

I have tried...
disabeled the firewall.
recreated the storage-node
recreated the centralized vault.
removed and readded the machines from AMD, tried with both hostname and fqdn
I have also tried removing ipv6 from the network interface
adding the hostname to the hosts file.
and searched the web/this forum.

Please. How can i take a backup of the OS disk of the management server itself. ?

kind regards
RonnyA