RecoverPoint Journal Lag, Image lookup questions

Hello,

I'm trying to clear up my understanding of a couple of concepts with recoverpoint.

First, journal lag.  If I run get_group_statistics (this is a non-distributed async CG, using WAN compression, no image access currently, unlimited journal lag, part of a group set), there are a few lines:

         Latest image: Fri Nov 22 14:32:07.124898 2013

          Current image: Fri Nov 22 14:31:21.927509 2013

          Journal lag: 10.89GB

My understanding of these things is:

• Latest image - this is the most recent image that recoverpoint is aware of (the newest written data in the do queue)
• Current image - this is the current state of the replica volumes, i.e. where recoverpoint is at in distributing the do queue data to the replica volumes
• Journal lag - this is the size of data in the do queue waiting to be distributed.  This can be seen at the delta between current image and latest image.

I'm assuming that my understanding of at least one of these things is not right, because it would seem to be indicating that there is 10GB of new writes between the current image and latest image, which I know is not the case.  So what does the 10GB of data in the Journal Lag actually mean?

Second, image lookup.  If I run get_images in the following manner:

> get_images
Enter consistency group name:
XXX

Enter copy name, or press 'ENTER' for all target copies:

Enter earliest time, or press 'ENTER' for no earliest bound:
(Format: HH:MM[:SS[:MICROS]] [DD/MM/YYYY]  OR  wks/days/hrs/mins ago)

Enter latest time, or press 'ENTER' for now:
(Format: HH:MM[:SS[:MICROS]] [DD/MM/YYYY]  OR  wks/days/hrs/mins ago)

Enter a specific bookmark name, or press 'ENTER':
YYY

Copy:
  ZZZ:
   Images: None
    Current Image: 14:47:50:793599 22/11/2013

And get returned "Images: None," is there any way that bookmark YYY does exist for CG XXX, but get_images does not return it?  In other words, is there a different way to search for a bookmark that would have more results than get_images?

And as a follow up to this, is there any way beyond snapshot consolidation or (possibly) journal compression that a bookmark in the middle of a protection window is deleted, removed, consolidated, vanishes, etc.?  The reason I ask is that in this case, I know bookmark YYY did exist, and it should be covered in the current protection window, but now I don't see it anywhere.

Forgot - in case it is relevant this is on 4.0.SP1.P1.