Hello,
I was having a similar problem to OP in that after flashing a new rom, my attempts to restore my backups using TiBu would get hung up at 0%. I would also try restoring by extracting app and system data from my nandroid backup (which I would always make immediately before wiping all data and flashing my new rom), and that process would always either get hung up at 0% as above, or, one time, it went through the process but only partially restored my apps and restored barely any data.
So, after looking at some of the advice in this thread, I thought that maybe my Superuser app was to blame (I was using the app named "Superuser" whose icon looks like a "#", NOT the superuser app that TiBu links to directly). Since TiBu linked to a different app, I uninstalled my old Superuser app and installed the new one. Now, when I start up TiBu, it says that it was not able to gain root privileges, with the error message saying in part, "This attempt was made using the "/system/xbin/su" command". I just tried rebooting my phone and TiBu still cannot obtain root access.
My first question is, what the hell do I do now? There don't seem to be any other options in the Superuser app itself, and I can't find any option in TiBu to "find" root access or anything. Has anyone had a similar issue, and how did they fix it?
Additionally, once I get my TiBu working again, are there any additional tips or tricks to prevent restore operations from freezing again? It may be worth noting that I was restoring from Trickdroid 8.0.0 to ARHD 22.0. I am also considering flashing Trickdroid 11.0, will restoring to a newer version of Trickdroid (as opposed to a completely different ROM) make any difference?
Thanks!