MPMoviePlayer No Longer Seeks Forward and instead gives warning

So it appears as though my MPMoviePlayer no longer wants to seek forward, despite it being the case that seeking is done internally by the MoviePlayer, so all I should be doing is setting up notifications in order to know that seeking is occurring.

So I setup my notification as such:

[[NSNotificationCenter defaultCenter] addObserver:self          
   selector:@selector(playbackStateDidChange:)            
   name:MPMoviePlayerPlaybackStateDidChangeNotification object:theMovie];

Then, inside playbackStateDidChange: I have the following relevant code:

MPMoviePlayerController *mpc = [notification object];
MPMoviePlaybackState state = mpc.playbackState;
if (state==MPMoviePlaybackStateSeekingForward)
    NSLog(@"playback state is seeking forward");

Finally, when I hold down the forward seek button, playbackStateDidChange indeed gets invoked, and indeed says "playback state is seeking forward," but I see no discernible change in the behavior of the movie. However, the 2nd time I try to seek forward I receive this warning in my console:

WARNING: _inflightSeekRate already set, which means multiple setRate:error: calls have been made before a _rateDidChangeNotification was received

So basically, the forward seek开发者_运维百科 isn't working properly, and I have a hunch that this is an MPMoviePlayer bug, but I couldn't find anything online to back my claim, nor answer my question. If anybody has any good ideas about how to handle this issue (maybe a workaround) I'm all ears.

Thanks;

-Steve

P.S. - I should mention that my MPMoviePlayer seeking worked just fine until I upgraded my X-Code/iPhone SDK last week. Now it appears to be just fine, except for the forward seeking.