the user is trying to restore and folder in outlook 2010. the files is archived in EV 9. when the user tries to restore it, the file does not gets restored and there is no error message.
Give us some detail about you envirnoment.
I believe it should be exchange archiving..
Could you please provide a client trace from the affected machine.
Also a Dtrace of "ArchiveTask , AgentClientBroker , StorageRestore"at the same time from EV Server would help..
you can check the below article on how to enable to client trace and dtrace.