How do I force Bridge to generate all thumbnails/previews when I load up a directory?

[rgames]

This problem seems to come and go, even without changing versions, and it results in a lot of wasted time: I load up a directory of 1000 or so images and I start scrolling through them.  Bridge pauses each time a new batch of images appears on screen.

So I scroll to the next batch.  And wait.  Then scroll.  Then wait.  Then scroll.  Then wait.  You get the idea...

Sometimes Bridge will generate all thumbnails/previews when I load up a directory but sometimes not.  I can't figure out what causes it to do so.

I have Preview Generation set to "Always Generate".  I have Preview Quality set to "Standard".  I have tried "Embedded" and "Standard" preview size and there is no difference in behavior.

So how do I force Bridge to generate all thumbnails/previews every time I load up a directory?  I'm happy to wait for it to finish but I can't figure out how to make it process more than a dozen or so images at a time.

Thanks

[Lumigraphics]

If you purge cache for that folder, Bridge will regenerate previews and thumbs.

[Feldbot]

This doesn't seem to work on missing previews on .png images. 

[murdoc16]

Have you figured out a solution to this?

I've been having this issue as well.  It only occurs.  When I'm on the "Embedded" preview size.  If I click on "Standard" or "Monitor Size" , it will generate the previews when the directory is loaded, however these processes take much longer than generating the Embedded preview, too long for my liking when I only just need to see the embedded jpg.