Having the same problems. MBP (with Mountain Lion, LS3, etc.) often will not come out of sleep (just blank screen). Nothing does anything except holding down the power key - which sometimes prompts for the unlock password, sometimes prompts to log-in (user and password) and sometimes re-boots. LS crashes are appearing in the Console Log (Little Snitch Agent.app).
Very frustrating. No idea if resume from sleep is LS3 as the delays/weird resumes do not always have a corresponding LS crash. Both crashes happened during a Time Machine backup to a WiFi connected Time Capsule.
Very frustrating. No idea if resume from sleep is LS3 as the delays/weird resumes do not always have a corresponding LS crash. Both crashes happened during a Time Machine backup to a WiFi connected Time Capsule.