Ardour 5.12 on Fedora 29 using Zoom R24 as sound card.
While working on a mixing project it suddenly started to produce ‘hiccups’ (short dropouts) during playback of anything. Also, the DSP indicator indicates continuous activity, often in the red, even when Ardour is doing nothing (not recording, not playing). I use a-EQ and Dragonfly reverb plugins only.
The hiccups can also be heard when using the system sound card so it is not R24.
When I revisit some earlier projects they play flawlessly.
So I must accidentally have done something in this project… But what?