Waves frequently updates their plugins to maintain compatibility with the latest operating systems (Windows 11, macOS Sonoma) and DAW updates. A cracked version from 2021 will likely not work on a modern system today, leaving you with a useless file.
Set Speed very low (near 0.1).
: It offers advanced "Tolerance" and "Note Transition" settings to help it distinguish between intentional vibrato and off-key notes.