Well, mine flexes from side to side and clicks but i ignored it as it was charging fine and you have to allow for a little tolerance....but this morning, for some strange reason, the lid wouldnt shut properly and after closer investigation, I realised that I now have to wiggle the lid slightly for it to close properly as the hinge at the back of the case is slightly dislodged. No physical damage visible and they hadn't been dropped as my pods had been sat in my home office since last night. I think that the case moving slightly from side to side may have affected the hinge.
Called Apple and asked for an exchange. Two two days of the two week exchange window left so Apple will ship out new Pro's once the courier picks mine up tomorrow.