Can't write to internal SD or something... topic

I have a Dev Edition Note 4, with a rooted stock ROM and for some reason I can't write to the internal memory. I can install apps all day long, but some apps won't write to storage. Examples:

1)Waze - Waze can't access your SD card. Make sure it isn't mounted
2)Dropbox- Storage full or Unavailable (when I try to download anything)
3)Xposed- when trying to install/update from within the app

"SD card:/storage/emulated/Android/data/de.robv.android.xposed.installer/files
Copying Xposed-Disabler-Recovery.zip...
Could not extract Xposed-Disabler-Recovery/zip"

I've tried flashing back to my original backup, running the KK SD card fix, formatting the SD card, trying a new and formatted SD card, and tried flashing the one ROM that is out for DE Note 4, and not matter what I do I'm getting the same error.

any ideas?

Thanks!