I assume this is a single issue.
Nope. Neither. I said above, even posted picture.
No, it's not found. Here is complete typing.
The moment I type last second space, nothing is shown, the selection window is completely closed.
I assume there is something going on here, maybe two spaces in a name bug, or something else? Definitely a problem. I assume the two problems I explained (PM and name tag) are having the same root cause.
As for the PM, if he send PM to me works just fine, reply too. So there cannot be restrictions. It works. But I also checked thoroughly in Admin CP. But if I initiate to send a PM, the error message is like above.