Same issue, only on a group text. Happened with my S7 Edge, happening on my Pixel 3A now.
Happens with users who are apple and android, one separate group of 4 and group of 3 all different numbers and carriers. I am in 62285.
Restarting, wifi, format, none of these work and since its going on with two different phones I am thinking its a Verizon problem.
Is this happening with the default messaging app, or are you using a 3rd party app?
We can take a closer look into this for you, please send us a Private Note for further assistance.