Questions about Nexus 6 on Verizon

Hey folks,

I'm wondering with all the recent monthly builds that Google has been releasing, what build # my Verizon Nexus 6 should be on. Currently, it's on LMY48M but it's been acting really strange. Text messages won't always go through, sometimes half of my wallpaper disappears, and the phone's settings don't always work.

By phone settings, I mean I'll be in a setting page like accounts, trying to change the sync settings for my accounts and it won't let me choose a specific account to manage the sync settings. It's weird.
I'm not sure what's happening, or if it's just the build # that's wrong. I'm also rooted and unlocked, but using stock kernel and stock build.

My Nexus 6 is unlocked and rooted using WugFresh Toolkit, and I bought the device straight from Google about a year ago.

Thanks!

P.S. If anyone knows what I can do, Enhanced 4G LTE does not work on my phone at all. People cannot hear me, and calls are dropped all the time. I've had to turn that off. Any suggestions on how to get that working would be greatly appreciated too! I'm not sure if this is related to my radios or not.

Many thanks folks.