A subscription is in Graced status, but its Grace Date was automatically postponed.
Why such situation could happen?
There was a Hosting Plan change for the subscription in question. Therefore, Hosting Plan change order was placed and provisioned. According to OBAS billing logic the subscription was returned from Graced to Active status, and then turned back to Graced by the periodic task Subscription expiration procedure.
If subscription had already expired, it would not have turned to active state.
This is a default behavior of OBAS billing.