Clicks and splats on playback but exports are clean

I have been getting clicks and splats in playback since I updated Audacity to v3.05. They occur irregularly but every few seconds on average, some of the splats seem longer than others. It was never a problem with v2.xx.
Adjusting the Buffer length seems to make no difference, neither does audio level, so I’m not sure what to try next. The finished mixes are clean when exported but it makes the edit process a bit grim when these random noises show up constantly.