Default [Q] sd card write fix applied, now apps keep crashing

Running 4.4.2 on ATT 1337 with NC1.

Ran towelroot and SuperSU so I could use TB to get all my stuff from my Note 3 to my S4 (company downgrade, don't ask).

Edited the platform.xml to this:
<permission name="android.permission.WRITE_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
<group gid="sdcard_rw" />
<group gid="media_rw" />
</permission>
<permission name="android.permission.WRITE_MEDIA_STORAGE" >
<group gid="sdcard_rw" />
<group gid="media_rw" />
</permission>

Now I get "email has stopped working", "Flipboard has stopped working" popups every 3 seconds. I "ok" them and they come right back. Many other apps do this as well randomly. Playstore will not work either. I assume the platform.xml change FUBARED things. But even with ES file explorer set to "root explorer" it will not save the changes again. How can I restore the platform.xml file?!?!

Also ran root checker, says "Sorry this device has no root."

WTF is going on?