I have had great success with a closet that is about 97% light proof, so I'm going to have to disagree that it has to be 100%. Also different varieties may act differently (duh). I agree with the others that say your light leaks could have turned your plants back to the veg stage, but perhaps that's not what's happening. Maybe your plants will start budding tomorrow or the next day. Some varieties take awhile. If you need to do some work in your grow room at night, it won't hurt at all to have the lights on for 2 or 3 hours, just don't do it all the time. You can have 2 or 3 days of the wrong schedule without it reverting either way. Of course it is best to try and avoid this; 3 days just might be too much as well. If it does go back to veg at this point, it may be another month or so until you start seeing signs of buds. Also while it is doing all this reverting back and forth, they may appear to be dormant. Don't worry that will change if you just keep taking care of them.