Google account sync is fixed with the last (cm-12-20141221-UNOFFICIAL-pyramid-SElinux_V2.zip) build.
Follow this guide:
PRE-REQUISITE CONDITION(s): phone must be with unlocked bootloader (what was the meaning of this thread anyway?!), rooted AND BusyBox installed prior this procedure!
1. Download the attached to this post recovery CWM 184.108.40.206 i...
Check this post and try it.
I did and it worked on two separate Windows 8.1 x64 installations.
But first - make a copy of these two system files by yourself, manually. ;)...
What app are you running on picture 2 & 3.
System Tuner - not PRO.
Here's a small token of gratitude for your efforts:
Confirmation number: 7WG21587JD4824123
Now take your time with your loved ones.
They're the real world! ;)