ᐅ Ikea Besta doors not flush – is this a defect?

Hello everyone,

After assembling a Besta cabinet, I’m not sure if the door is improperly installed due to my mistakes, or if the door panel itself is defective.

Here is a photo of the current result:

There are two drawers installed at the top and two doors at the bottom.
The problem is with the bottom right door, as you can see more clearly here:

The door is only misaligned at the upper left corner. That means this corner protrudes further into the cabinet interior than the bottom door. To me, it looks like the door itself is warped or twisted.

Does anyone have any tips on how to adjust the door so it looks right, or do you think an exchange is necessary?

Thanks in advance for your feedback!

Best regards
Stevo

Hello,
from the picture, it is not clear that the right door is inset further at the upper left corner. Logically, a deeper inset means the door contacts the cabinet at the upper left corner but not at the bottom. Otherwise, everything else would be incorrect.
So the first check should be whether all the door stops are installed and where the doors contact the cabinet and where they do not.