It can be some technical detail.
For example: imagine you have 2 windows, the lower right corner of one window almost touching the upper right corner of the other, so that the bounding rectangles overlap but the graphics don't.
With the inaccurate "false square" corners, you just had to check the bounding rectangles, to know which window to resize, now you have to check the actual graphics (or more likely, a mask).
I am not saying it is the problem, but that's the kind of thing that can happen. Or it may be a simple bug, like a crash, memory corruption, an unhandled exception, the usual stuff, but they couldn't fix it in time and it is better to revert instead of leaving the buggy code or pushing an untested fix.
Just revert the code back to pre-26! This is ridiculous, it can't possibly be this hard and if it is, it just points to the degradation in the quality of Apple software! This is maddening!
This is already the pre-26 bounding box, isn't it? It's the new graphics that don't line up. (Not a great excuse, but the graphics are here to stay at least for a little while.)
> the graphics are here to stay at least for a little while
And that's the reason why I won't buy a new Mac.
Tahoe and Liquid Glass are so horrible that they're going to lose customers because of those. They should realize what they did and just backtrack: it wouldn't be the first time they admit they made a mistake [1].
[1] https://www.theverge.com/2020/5/4/21246223/macbook-keyboard-...
Still waiting on admission that the magic mouse was a mistake though
> it can't possibly be this hard
Whenever I find myself saying this I remind myself it can in fact be this hard.
Pre-Tahoe windows didn't have these stupid round corners (which is the ACTUAL bug which should be fix).
I am using Sequoia and the windows are definitely rounded! Though the radius is pretty small (the curved region is about a quarter of the mouse cursor area), so the fact you can drag it from outside the window doesn't look ridiculous.