I'm sorry to learn that you are experiencing some issues with the Message+ application (https://www.verizonwireless.com/support/verizon-messages-faqs/), sbrooks2583. We are committed to resolving this issue for you.

Do you experience duplicate incoming messages from specific contacts?

Do you notice any improvement if you power your phone off for one minute and then power it on?

AntonioC_VZW