The Asus 10.6.1.8 update to Jelly bean 4.2 OS remove my root access today. This is how I solved my problem.
Here is a copy for TWRP with the password that locks you out of the program removed. I tried the 2.5.0.0 JB then, the 2.5.0.0. 42 versions
of TWRP but to no avail. I found a link somewhere...