We are aware of an issue whereby Serato Sample UI parameters (like attack, release, time stretch, or key shift, for example), can act erratically if used with Logic Pro on macOS 11 Big Sur or macOS 12 Monterey, on an Apple Silicon (M1) computer.
Modifying these parameters can result in glitchy selections or values jumping around, making it hard to make accurate adjustments to your desired parameter. This issue occurs due to Serato Sample running 'out of process', given that Logic Pro runs natively on Apple Silicon (M1 series) hardware, while Serato Sample wants to be run in the emulated Rosetta 2 layer.
To resolve this issue, simply run Logic Pro in the emulated 'Rosetta' emulation layer:
- Close Logic Pro, and navigate to Applications > Logic Pro
- Right-click on Logic Pro, and choose Get Info
- Under General enable the checkbox next to Open using Rosetta (as per the image below):