I accidentally hit L during a game, and further games have had the camera follow feature disabled. No matter how many times I hit L again, or how many times I went to settings to enable the camera follow, it’ll go back to being perma disabled, this happened for two games in a row.
This happened to me as well. I had to go into Bnet app and ‘Update’ the game (not sure why it requires this every time I start bnet app…). Restarted the game and then it worked.