Siera Purgeable Staoage Type

[scud]

I'm on the latest Siera Beta, and drive space seems to be getting less.

When i check "about this mac" --> storage, it shows this weird new purgeable data.
Just don't know what it is. Could it be some kind of cache ?

Anyone seen this before ?

 

[creeper]

http://www.macworld.com/article/3101944/macs/how-to-use-optimized-storage-in-macos-sierra.html

 

[scud]

Finally found how to fix this, probably just a beta 3 bug
https://forums.developer.apple.com/thread/50126