Lightroom :: Folder Image Counts In 4.1 Not Updating

LR Version Running: v4.1 Catalog Size: 27176 images spreadout over approximately 150 folders
 
Primary Problem: The image counts represented on folders in LR are not reflecting accurate counts until I run "Synchronize Folder" option.  This occurs on a fairly frequent basis and in a number of cases I can reproduce the problem.
 
History: This missing of images in a folder has been plaguing me since the initial release of LR. During that time I opened a case and Adobe Technical Support who took over my desktop and were also able to reproduce the problem. They had no fix but said that it was a software bug and would be corrected in a subsequent release. I am now on LR 4.1 and it still is present.
 
Specific Examples:
1) I will go to a folder looking for an image that I know at one time was visible in LR but now it no longer is there.  So, I search for it using LR on such attributes as filename or keywords without success. I then open up  Windows Explorer and navigate to the folder and there it is.  I can even right-click on the file name and open it up in Adobe Photoshop.  I don't like going that route because I lose any adjustments I may have applied in LR.  So my solution has been to right-click on the folder of the file that is missing the image(s) and select "synchronize folder". I am then presented with a dialog box that displays the number of missing (that LR calls"new") photos. Next, I click on the "Synchronize" button in which I am then presented with the import screen and shown the missing images.  I then click on "Import" button and when the updating process is finished the folder Count is now correct and image shows up in the folder.
 
2) I can reproduce this behavior every time when I open an image in PS from LR, duplicate it, convert the duplicate to Black & White (Image-->Adjustments-->"Black & White"), apply an action to reduce the file size and change the color space, and then save it as a jpeg in a folder called "web" sitting under the original source folder. After saving it the count on the folder does not change, at least not until I go through the "Synchronize Folder" process.  Ironically, if I now go to the original color image that the B&W was duplicated from and convert and save it as a jpeg to the same folder the folder updates immediately. 
 
3) After importing a large number of images from a photo session into LR (via a card reader) I will delete the unwanted images, assign a subject specific naming convention to the remaining ones, attach keywords, and then use the export function to transfer them to their various subject related folders for long-term storage.  Since missing images has been a long-standing problem for me,  out of paranoia I will go to the folders to verify that the images are present For example, recently I exported 50 images to a folder and then went to it to verify all the images transferred correctly.  I was unable to find five of the images.  After running "Synchronize Folder" the folder amount was updated in the images appeared in the folder.  All of files in this case were Canon RAW (CR2).