@stevenanto are you using Samsung stock messenger app or others?
If you have been using Samsung app, you might try another one (maybe Google messages) and see if you still have the same issue
@stevenanto you checked this already?
Open your messaging app, go to its settings and look for an option for group messaging. Make sure it's set for MMS (group messaging) rather than individual SMS messages.
Also, if you're getting messages that say "Tap to Download," it usually means there's a problem with mobile data. Make sure your mobile data is turned on. If it is and you're still having trouble, check your APN settings and make sure they're correct for your carrier.
Make sure the people texting are replying to the group, not individual texts? Is everyone using Android? iPhone? Sometimes text message groups may be created through iMessage, so maybe some people are replying through Apple Messages? Make sure everyone in your group is replying through "green" bubbles, aka SMS.
@stevenanto I think that @LeePublic is on to something here. I was recently in a group chat started by a friend on his iPhone. I believe most people in the chat are also iPeeps. In any event, I got all the messages that he sent out (he was sending updates to a group of us about something going on), and I know from chatting separately from another person in the group that the rest of them were replying and seeing each others' replies, while all I saw were the messages from the originator and nobody else's replies. On my end, it appears like a regular SMS one-on-one chat with that individual rather than an MMS group chat, even though I have Google Messages set up correctly and have successfully participated in other group texting chat there (even with a lot of the same individuals) without this issue.