Tremolos in playback

The first thing to check: are you using the most recent update for your version of Dorico. If you’re using Dorico Pro 3.5, then the most recent update is Dorico 3.5.12, which you can download here.

If that doesn’t help, or you’re already running the most up-to-date version, please cut down the project to just the affected passage and upload it here.