I've also had that happen in a level up tower, but only once for the umpteen times I've played through the game.
Since you will at least need the double jump feat to complete the game (in theory, since jump perks and/or the bat will do as well), you'll have to get the miniaturize feat anyways, so it's not a huge deal.
There was also a time where a lava area could not be bypassed without the water dash feat, which you'll theoretically have to get as well, so I wouldn't call these game-breaking bugs. It is super-annoying though when you don't have the feat on hand.