Premiere audio delay

Hey, so recently bought premiere pro as that was the main software for handling mp4 files and doing basic video editing. Now, the problem arises when i have a long video (about 2 hours) and I'm going through it and cutting the video up as you do, but suddenly after some cuts the audio becomes delayed? Only thing I've done is to cut the footage (and yes the original footage does not have audio delay), which leads me to ask why does it all of a sudden start to f up? No delay on the exact same footage so there is something happening whilst cutting. Any help?

Edit: i keep re-alligning the sound to the video but after a few cuts it need total correction again how in the  is it so hard to make a simple cut function work??