Problems in Beta 150327.G.2:
1. Preview tumbnails on video files changing with 3-10 fps rate picking random frame from video.
2. If "show folder size" enabled, information does not update. I had TWRP folder with some backups, after deleting them TWRP folder size still 3.53Gb. Enabling/disabling "show folder size", refreshing (by puling down), checking properties of folder, clearing cache, rebooting phone doesn't help. Looks like folder size counted only when option enebaled for the 1st time.
3. Yandex.disk cloud storage shows 9.42 GB used from 592.23 MB. Actualy its 9.42 GB used from 10 GB, so 592.23 is free space reported by storage. Accesing it by webdav shows same error.