Updating Exodus Nandroid Restore Issue

Sorry if this has already been asked; I tried searching, but I couldn't find anything.

I'm running Exodus version 5.1-20150911-NIGHTLY-bacon, TWRP 2.8.6, Exodus stock kernel
I'm trying to update to a new nightly, but I always get stuck in a bootloop.

Here's what I do:
Reboot to recovery
Nandroid backup
Wipe data, system, cache, Dalvik
Flash the new ROM (I tried COS 12.1 once, but it didn't work; I mostly try flashing the latest Exodus nightly_
(sometimes) Flash xposed-v74-sdk22-arm-by-romracer (it doesn't make a difference if I don't flash it)
Restore only the data from the last nandroid

Now when I reboot I'll just be stuck in the boot animation or I'll be able to pass the animation and I'll just be stuck in a loop setting up the apps.

If I don't flash xposed, but still restore the nandroid I'll boot up faster, but I get System UI has Stopped and then the phone goes into a boot animation loop
If I don't restore the nandroid it works fine and boots up way faster.

How can I update while keeping my app data (my xposed data isn't that important to me if that'll make a difference)?