My Mic is disabled while playing overwatch. Why?
Solution 1:
This symbol is there, if you have an open mic and are muted.
To mute/unmute yourself you can try pressing the standard button M, or you can look it up in your settings, should you have rebound the key.
Note: the font is either blue, green or orange, depending on if you are in the team, group or match voice chat, respectively.