Who I have the same questioned this topic

During periods of a high volume texting in a short duration inside a MMS group chat, all MMS messages will cease to download or send. I can still send 1 to 1 text messages(non MMS), use data, make calls, all on wifi or cellular 4G data. After 20 minutes all pending to download MMS messages and stuck in sending outbound MMS get sent all at once. If i go into airplane mode and out of it, i can short circuit this cycle and get my messages earlier before waiting 20 minutes.  I have had this issue for 3 years on 3 different phones and i'm tired of living with the bug. Used different apps, also deleted app cache and even painfully deleted all my message history and nothing resolves. 

Contacted Verizon on Friday (5 days ago) still no feedback from open networking ticket NRB000011130488. Based on previous community forum tickets, a public solution or confirmation of resolution is never posted. The community posting just ages out and is closed.  

HAS ANYBODY GOTTEN THIS FIXED WITHOUT CHANGING CARRIERS OR GOING WITH iPHONE?