I have been playing War Thunder for a few years with no problem. But more recently, I started watching Youtube videos of WT gameplay, as well as started playing more custom battles. Something I see on Youtube videos is a few enemy players using the [All] chat feature, and their messages are visible. But when I play, I see none, even in custom battles, where enemies talking to both teams in chat is very common. I can tell that enemies are using chat with both teams because I see many "ghost conversations", where my teammates answer questions and reply to nothing (I can see) in chat. Here is an example of a "ghost conversation" I saw:
(Teammate)> hey (Enemy Player) I like ur skin
(Teammate)> you custom made that? what program did you use?
(Teammate)> ok thanks, i'm getting it now
{comes back with new skin}
(Teammate)> you like?
(Teammate)> thx
(Teammate)> oh ok bye
This is from a custom match, and the messages were uninterrupted by any messages in between. I have no problem viewing teammates' messages.
Edit: When I first got the game I could see enemy chat messages. That was on an older computer, but this glitch started on that computer after about a half-year break from the game and carried on to this newer computer.