Content index failed status on dag member

Hi guys.

Create DAG and put 2 members into it (both members on different AD sites).
After putting the copy of database on mailbox srv 2 I see the status there:

Corp IT Test\EXCHANGE-srv2

Passive                                    Healthy
Copy queue length:                                     0
Content index state:                                     Failed

Why this kind of content index state?
Will this be repaired automatically?

bostjanc