Minecraft chat issues

Basically I did every fix I got told about this issue but Basically this what happens when in my world or any world or any online server I can't see my friends chat and a couple others also that I don't tho like in the servers this is a problem as I need to see his chat as well as others well I can't do much a picture for it as all you have to imagine is my friend or someone that I can't see in game saying hi to me I would never see unless someone in chat that I can see told me so so please fix this so I can see my friends chat with everyone else I'm meant to see pls