Well that most likely rules out issues with the -v4 drawable folder names, since atleast one of the themes you mentioned has the -v4, whereas mine doesn't... so those can flash over each other it appears..
The one thing to note is that some of the inverted versions are named vending.apk and some Vending.apk -- so I make sure to check the zip file and change it to Vending.apk, so it replaces the already-installed version (I had one issue where a lower case version didn't show up, and my already-installed version started FCing, because I had both vending.apk and Vending.apk in /system. In that case, I deleted the lower-case version, renamed the apk in the zip file, and reinstalled and it was fine.