AutoCAD DXF imports distorted on build 433

Hi, I recently updated my carbide create software to the build 433 and now i noticed that when i import DXF files they always come in distorted (arcs become lines, Tee"s become triangles straight lines become angles), but they are always distorted in the same way if i try several times. these are all files that worked perfectly in the previous build, so i am very confused.

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