Originally Posted by bananagranola
Did you boot into the tablet after unlocking the bootloader but before rooting it? If not, try formatting data (not factory resetting) in recovery. I had the same experience and my sdcard never got populated with the default folders and files, remaining at 0MB. Apparently, symptoms of this problem include being unable to factory reset from recovery, being stuck on the splash screen, and having TWRP demand a password.
I'll try that, maybe its because I restore my data after I wipe it that this happens. Another thing I've found is that after I flash and the restore my system partition that I backed up, su says that no subject binary was found, even though I've flashed it a million times. And some root apps don't work because it says no binary is found.