When using "Convert into Shape", font's overlapping points are rendered incorrectly (SF Pro in the example below).
Edit: after some testing, this seems to happen only with SF Pro, so it could be a font-specific problem (probably path direction).
MacBook Air M1 (2020)
Ventura 13.2.1 (22D68)
Pixelmator Pro 3.3.1 (Mosaic)