Ever since I have upgraded to 6.5, now I have 6.5.2 on my Galaxy S8+. this app has been screwy. Now Messages are being sent out of order (and sometime showing up much earlier in a text stream than when they were sent) and in duplicates often so that they either come in twice or the same message is being sent twice.
This is driving me crazy and forcing me to start using Whats App instead of Verizon Messager.
Please help