In this case, the artwork is 20 × 9 pixels: even-by-odd dimensions. The
results for bitmap layers and vector layers are different, but they both
produce unusable results because the origin of rotation doesn’t fall on an
exact pixel boundary..
A Fix
Because even-by-odd or odd-by-even dimensions are the problem, we
need a way to ensure that the contents of the layer are odd-by-odd or
even-by-even. Probably any method you can think of will solve this