[CRASH] Still having the White Screen issue on Mac

I keep randomly having issues with my mac being unnable to connect to games (happens around 1 in 5 or 6 games). I saw many other forums describing these problems a few months ago, and is there really not still a fix (tried that space bar spamming thing and uninstalling PBE and reinstalling league/full client repair multiple times)? I don't want to get a lower priority queue/ban over an issue that has to do with the game running on mac and not me.