Unicode ↎(\u+218e) can be entered but does not render in chat.

Pretty straightforward, the unicode character \u218e can be entered in chat, but is not rendered by the client as a box character, like \u202e is. This can likely be reproduced with other unicode characters. My steps to reproduce this:
1. Copy character to clipboard. My method was using Google Chrome's console with the command "copy('\u218e')".
2. Paste in chat