Got the same problems.
Started out by flashing the recommeded one.
Then flash a recovery (cwm).
Then factory wipe, flash switchzip 1 and 2.
Ending with SuperSU and then reboot.
When trying the Switch nothing happens just reboots into TW again.
Tried doing factory reset and reinstalling the rom as well as the update. No go when Switching, just back to TW =(