Dorico interface disappears

I just installed Dorico 3.5.12 on another macbook and every minute or so (at least during playback) the entire interface becomes grey and the sound stops for a few seconds (and then goes on again). When hovering the grey area, user interface elements start appearing under my mouse cursor and when switching to another desktop and then back to Dorico, it also redraws the entire interface. Is there a fix for this? I’m using MacOS Catalina and a Macbook Pro from 2013. Thank you in advance!

Dorico (363.6 KB)

We have seen reports of Dorico’s interface disappearing temporarily, but only in connection with connecting/disconnecting a secondary display, or moving the Dorico window between displays.

What is the CPU in your 2013-era MacBook Pro? If you run Activity Monitor and look at Dorico’s CPU usage during playback, what does it show?

Just to be sure, although I already reported this in the past: I have the same problem quite often, but in my case there’s no second monitor attached, and Dorico doesn’t move from one display to another or anything like that. It happens often during playback (but not exclusively). If it’s during playback, the sound will also be interrupted for a second or so, as if it’s crashing and restarting directly, but it does not affect the playhead and the running piece of music.
Dorico (589.8 KB)

The CPU is a 2,3 GHz Quad-Core Intel Core i7. Dorico uses between 100 - 120% CPU power during playback.

I suspect that’s the problem: the CPU is unable to service the real-time demands of playback and the redraw of the window. You might find that increasing the buffer size in Edit > Device Setup provides a bit more headroom that might reduce CPU usage a bit.

Thank you Daniel, today I didn’t see this glitch, with a larger buffer size.