Hello! I am curious, is anyone having sleep/wake issues under El Capitan? I am using a 2010 MacBook Air and since Public Beta 1 I have experienced an issue where my Mac does not wake properly from sleep mode. I have to hold the power button to shutdown and then restart on many occasions. I have tried re-installing El Capitan already and I have also installed Public Beta 2 to no fix. I submitted feedback using the Feedback Assistant app but I am curious if anyone else is experiencing this. If this is a repeat post, I'm sorry I am traveling so I haven't been able to read all the forums quite yet.