Strange deformations by corner tool

[avo]

Hi, when i try to make rounded corners in my half-circle i get deformation like this. Second corner works fine but the first one always looks rounded not right. Worked great before the last update, i rounded thousands of corners with this tool

[SPaceBar]

HI @avo I have half reproduce this in that I can use the corner tool on one corner of my half-circle but I can't get anything on the other one. The tool is working fine on squares and triangles but I'm not having much luck on my half circle.

How did you make your half-circle? I drew a circle, added a rectangle over it and used Subtract or Divide. This leaves me only able to modify one corner.

[avo]

in my first example i used Segment tool, which is cool for making quick half-circles. Here i add another example, where i made half-circle by subtracting rectangle from  circle, like you mentioned. Still see the deformation in rounding of a corner. You couldnt round second corner cause it is a smooth point somehow, it must be converted to sharp point - then you can round it.