Problems syncing a new block

I'm using AutoCAD 3d 2010 Map. Basically I have footage blocks that need to be replaced. The new blocks are adding two new attribute fields. I bring the new block into the drawing and use block replace to replace the old blocks with the new one. I then use battman to sync the blocks so the new attributes show up. However, this is where everything goes boom. The blocks lose their footage data and default to the Default: attribute field. Is there anyway to keep AutoCAD from doing this?

I've included a couple of screen shot of before and after the sync. The white # is the new block. The blue numbers are the old block that are replaced that after sync turn into # also.

I can't answer your question but notice that the blocks highlighted have different names. Is this deliberate?

Yes it is.

all I can say is that I have never had problems with 2008 using ATTSYNC (not used BATTMAN but they do the same things) when updating blocks providing they haven't been changed since the last ATTSYNC.

The two times I have had problems are:

1. Attributes have been moved using grips - the ATTSYNC will move all the attributes back to their "as defined" position.

2. Attributes have been added or deleted in the block definition and various "revisions" of the definition reside but the block has never been synced. ATTSYNCing updates them all to the current definition which is often unexpected.

I have never had the input text change when syncing a block. Map may behave differently though.

I figured it out. If the TAG for the attribute isn't the same on both blocks it'll cause that error where data gets replaced.