RapidWeaver or Stacks don't show Warehouse Picture Updates

I always work with warehoused images. Now I uploaded new versions of TotalCMS images to a TCMS Gallery an set new links to (in this case) the Impact Slider Stack, but in RW Edit and Preview I show still the old images. At the published site everything is fine.

For me it looks like RW use some files that stored inside the projectile or from cashe at my mac.

Any idea to solve this problem. I can’t work with this issue at this project…

(using latest version of everything)