New patch on PC just now. Should be the Mei fix.
Patch Notes for new page:
BUG FIXES
General
Fixed an issue that caused the game client to crash when Overwatch was launched
Arcade
Fixed a bug preventing the Null Sector bots from spawning during the payload escort phase of the Overwatch Uprising brawl
The Overwatch Uprising 2017 player icon will now unlock when you log into the event
Firing shots while standing on the payload in Overwatch Uprising will no longer cause accuracy issues for your hero
Fixed an issue preventing players from placing turrets on moving platforms (i.e. the payload)
The Overwatch Uprising scorecard now correctly tracks stats from Sombra's Hack
The Overwatch Uprising scorecard now correctly tracks Ana's healing stats
The Overwatch Uprising scorecard now correctly tracks D.Va's enemy eliminations
Competitive Play
Fixed an issue that could cause inaccurate results when breaking ties based on capture percentage on Assault and Assault/Escort maps
Heroes
Fixed an issue that allowed players to move freely when being hit by Mei's Blizzard or Endothermic Blaster
Fixed a bug causing D.Va's hair to be rigid in the Selfie highlight intro when her Palanquin skin is equipped
Fixed a bug causing Soldier: 76's cape to clip during the Push-Ups emote when his Strike Commander Morrison, Daredevil: 76, or Stunt Rider: 76 skin was equipped
Fixed a bug causing the ice on Pharah's Frostbite skin to stretch when her Flair emote was activated
Maps
Fixed a bug causing glass that has been shattered by an explosion to be colored black