NW9x + MS SQL DB as VSS can't recover DB over server GUI

Hello

Some days ago i found strange problem.

environment: NW9.1 + MS SQL 2008R2

i have special policy for SQL backups, all tasks are complete. in save sets on volume i see this backups.

i can restore DB from this save sets from client GUI on MS SQL server.

but if i try restore db from NW server GUI (over Recovery bar -> New recovery or Client recovery)

i don't see SQL recovery options in list "available recovery types".

who can tell me, what i broke ? =))

best regards.