i don't get why you have problem after problem lol
but the reason why you can't make another nandroid is either due to the insufficient space in your sd or not enough battery
and why do you need to make so many nandroids? it seems like you made nandroid before flashing again and again
you just need 1, and if you want to make another, make sure you move/delete the current nandroid from your phone
Phone: Samsung Galaxy S3 I747
Recovery: TWRP latest
Rom: Switching between Task's AOKP and CM (still hate the pink unicorn, why PINK!!)
Beat my Battery Record !!