Before the last update, we could access the chat by using enter key (which is also a forced keybind to validate screen when in the server lobby). After the update it is not possible anymore, unless i rebind the default "/" chat key to enter, but then enter does not work anymore in server's lobby where its overlapping with the new chat keybind (if i recall correctly the previous keybind for chat was the "C" key... which is also the default keybind for "raise" weapon and thus was the reason raise didn't work before last update which change the default chat keybind.
Humpf, goodluck for understanding ^^