There are two topic with the similar problem, please check them:
https://answers.ea.com/t5/Battlefield-V/In-game-Chat-Filter-Feedback/m-p/9118539#M68191
https://answers.ea.com/t5/Battlefield-V/BATTLEFIELD-V-CAN-T-USE-CHAT/td-p/7192782
What happens when you try to send a message in the chat?
the chat dialog comes up, im able to type, as I would be able to normally, however when i press enter, nothing appears in chat.
I can change channel squad / team / all.
I can hide, hide until active, and show chat.
As for the commorose issue
As squad leader I can click UI points *such as the A icon* and give orders, but can't keep the rose up.
In a vehicle i'm able to use the commorose normally.
There are two topic with the similar problem, please check them:
https://answers.ea.com/t5/Battlefield-V/In-game-Chat-Filter-Feedback/m-p/9118539#M68191
https://answers.ea.com/t5/Battlefield-V/BATTLEFIELD-V-CAN-T-USE-CHAT/td-p/7192782
