[Slicing problems after rotation]

This occured with version 4.x.x (not shure anymore) as well with 5.3

[Slicing problems after rotation]

I have sliced my model without any problems (see first picture) in an upright position. Due to better heating of the model I have rotated it by 90°. When I slice it again with the same parameter I get a broken result. The model was created with Sketchup. I imported it also to FreeCad and created the STL file with no difference.

Is there an error on my side or is this behavior knownslice_error.pdfslice_error.pdfslice_error.pdf?