The Bubba-story 'Time is money' contains major plot holes:
Scrooge goes back in time, meets Bubba, goes to his cave and makes marks with Gyro's laser-pen. Back in the present, lawyers claim Scrooge's marks mean the cave, with the diamonds is now property of Scrooge. This means he no longer has to pay Glomgold, because he already owns the mine. But later, in part 4, Glomgold urges Scrooge to pay him the millions he owns him. Huh?