As I said in another thread, it's almost (but not quite) funny. I just did the update to 6.4.9 this morning ... will likely update to 6.4.10 tonight or tomorrow. I haven't had near the issues others seem to have. Groups work, sending and receiving photos work, to and from those using Messages, iPhones, other texting apps ... I haven't seen many problems at all. So I'm either oblivious to them or just lucky??
The solution is to remove and reinstall Verizon Messages. I did this yesterday and now all my crashing and hanging issues on my LG V20 have disappeared. You do have to resetup your preferences so know what they are if you're not sure, but it doesn't remove any texts and problem solved.
If, btw, anyone is experiencing smartwatch delays, unpair/factory reset your watch and let it all resync and those problems go away too.
Here we go again ... version 6.4.1111 released 3/24/17. From the Play Store description:
Continuous PIN generation – Fixed
Battery Drain – Fixed
White/ Black Screen - Fixed
Added New Emojis
Block contact - Fixed
Customers not receiving messages when they do not have Mobile data / WiFi – Fixed
Customers using 3rd party messaging client not receiving messages – Fixed
Schedule Message – Press and hold for scheduling a message – Fixed
Bitmoji and sharing images from other apps cannot be attached – Fixed
MMS messages not sending – Fixed
Wear and Bug Fixes