If I try to paint the notes in the key editor and I set the quantization to 1/16 for example, or even any other quantization, it always paints a 1/1 note… I’ve tried to set to Grid+Events+Cursor but anything… the 1/1 note has painted…
Quantize and Length Quantize are two different things.
Quantize is for the grid only (position of the notes).
Set Length Quantize value to the length you want for the notes.