Flip Phone not getting group messages

[Kymker]

We are having issues with an LG flip phone and group messages. My 2 kids have the exact same phone but one phone will not get group messages and one does receive them just fine. I have checked all the settings and don't see any difference in them. The phone that isn't getting group messages was an existing line but we upgraded to this LG phone so that she could get group messages so it has a SIM card from her old phone (which was an Alcatel). Any ideas on how to get group messages to work on this LG flip phone?

[Jude]

Hi Kymker. My name is TracFone Jude. We apologize for the trouble this has caused you. To further assist you, please check your forum inbox for a message. Click on "New Messages" beside User Control Panel to view your forum inbox. You may also text the key word HELP to 611611 to view our self-service menu with a list of help key words with valuable information. Thank you.