Photoshop :: Load Files Into Layers Fails To Complete CS6?

When in Bridge, after selecting 6 images (CR2) using the command TOOLS>LOAD FILES INTO PHOTOSHOP LAYERS the first file will load into Photoshop, Photoshop will then generate a second blank layer and then read the second file. At this point the "script" will stop. I am left with a document with 2 layers. The top layer has my first image, the bottom layer is empty.
  
At this point when I quit Photoshop I am prompted to save this open document which appears to be the only open document. I choose not to save this as a file. I then get a dialogue box prompting to save another open document. Photoshop has loaded the second file to place as a layer but as the "script" has aborted I am left with an open, but invisible file. 
 
When I first loaded CS6 on Snow Leopard, it would demonstrate this behaviour every time I attempted to run this command from Bridge.I did a clean install on a blank HDD of OSX Lion. Installed CS6. The command worked without fail for about a month.
 
Then I would get the command aborting occasionally. Restarting Photoshop would let me continue for a few hours before this aborted script problem would happen again. Over the last week it has become more frequent, to a point where this workflow is unusable.
 
A restart of Photoshop may fix the problem for the next batch of images, only to fail again soon after, or fail on the first attempt after a relaunch of Photoshop. A reboot of my computer will allow my to load one or two sets of files before again failing to complete the command.
 
 I have tried the following:
  
In Photoshop preferences:

disabling the "Use graphics Processor"

Increasing or decreasing the amount of RAM available to Photoshop

Changing the cache levels or changing the cache tile size

changing the scratch disk

Trashing the Photoshop preferences file (Photoshop Settings.psp)
  
In Bridge
 
 Purging the cache

Increasing or decreasing the cache size

Resetting Bridge preferences (holding Command on launch) and deleting all cache files.
  
In general system
 
Quitting extra programs (Safari, Thunderbird, iTunes)

Sometimes this will seem to then allow Photoshop to load a full set of images, only to abort again after a few sets.

Rebooting the computer - again will work for a few images sets before again failing.
 
 Now the fact that it worked fine for several weeks without presenting a problem would indicate that it is not a bug.The fact that is slowly started happening then became more frequent would indicate something changing slowly over time - a larger cache folder perhaps, although purging known Bridge cache folders has not filed the problem.

System is as follows:
  
Mac Pro 2 x 2.66 Quad Core
24GB RAM
ATI Radeon HD 4870 512
OSX Lion 10.7.4