Hello @u.strautz,
Welcome!
It works with Processing 4.4.10 on W10:
Also works with Processing 4.5.2 on W10.
Can you please provide some details:
- Processing version
- Operating system
- An MCVE for us to try.
This can help narrow it down.
Sometimes it is the renderer or something else in the code.
More on MCVE here:
Guidelines—Asking Questions
:)