It probably has enough fluid pressure to make the clutch disengage ok when everything is warm, and everything has expanded. When its warm, maybe the hydraulic system has more volume, or linkages have expanded, and thusly you can disengage the clutch?
But when its cold, tolerances are different, or maybe the trapped air in the hydraulics has less volume, and then the clutch doesn't disengage properly.
Always do the easiest thing first, so-
Try bleeding it again.
Reminds me of the one time my clutch was slipping. The car only had like 17,000 miles on it. It was an extremely hot day, and we were caught in heavy stop and go traffic. THe whole undercarriage of the GTS got so hot, you could hardly hold onto the metal part of the ebrake lever or shift stalk. Then the clutch started slipping! Never got the car that hot again, and the slipping never happened again. Had the clutch looked at, and the Viper tech said the lining material looked like it was new, no wear to speak of. Flywheel was ok too. Go figure....
