The OTA patch was FINE. IT WAS GOOD. ALL OTAs were good.
BUT it needed FULL WIPE. or at least deleting the folder from /system/etc/snd...
THen that OTA works OK.
I am doing one thing in Build # 10,
I will add a script to erase System/etc, bin and lib folders. Every time. I dont think anything except /system/app,framework needs to be preserved. We can wipe the rest. So users can install builds without wipe and stay safe.