It's this issue: https://github.com/LMMS/lmms/issues/3170
We don't have a fix for this yet.
What sound engine do you use? What OS do you use?
If you're on Linux/SDL, try switching to Alsa and see if that helps.
It's this issue: https://github.com/LMMS/lmms/issues/3170
Yes its broken, but 'vinyl' can be created in different ways