The big bug after the small bug fix ?!! I was really skeptical installing the latest update after the announcements that the cache will be removed and that it actually had the purpose to speed up render times not having to reload the textures every time.

The decision of removal sounded a little like " If you are not happy with what you get then we just remove it with the consequence of slower rendering reactions " 

In another thread it is also mentioned that the Cache does not work and textures need to be reloaded for every render test ! This sure can cause a heavy load.