It's been happening for weeks now, the messages are popping out on my notifications but when i open IG chats i can't see the messages at all. I tried to clear the caches and datas but it didn't work. I checked my internet connections, WIFI and Mobile Data its all good, I also tried to uninstall the app and install it again but it still didn't work. Thats why I think the problem is the application coz my phone is still in a better condition that's why i hope you can fix this problem soon.