In a match at Frozen City tonight, from the time I spawned on the map through to the end, the map showed no terrain, it was all blank.
The grid existed, but all players (of both teams, including the opposing team long before they were spotted) showed up at the very center of the map (I think one of the corners of grid F4).
Player arrows rotated according to the direction their mechs were facing throughout the match, but never left that central point.
Both friendly and enemy base icons also showed near the same location, but slightly off-center.
I attempted to take a screenshot, but it ended up just showing as a black screen when I went to look at it after the match. (this could be my fault, I might have hit the wrong key or something)
I brought up the battle-grid as well, which showed the same bugged grid, enlarged.