I am having the same issue and have been for awhile. I only got my phone (LGG5) 3 months ago and from the looks of this forum this issue has been known about since the LG G5 came out. I have gone through all of the troubleshooting with your store sta...
I'm haveming the same problem on my lgg5. Some msgs come through but others don't (from the same contact). So far this is happening with 3 of my contacts that I know of. Any help would be great, thanks.