I received the OTA ZVC update last week and was currently rooted and had TWRP installed at the time. I reflashed the stock rom using the LG Flash tool and went through three updates to eventually wind up at Kitkat, when I was using the stock ZVA rom I was able to use IORoot 25 to root my phone and then use FreeGee to install TWRP later on. Now that I'm on ZVC Official I can still use IORoot25 to root my phone but can not seem to get a custom recovery to stick, anybody else figure this out?