Seems odd that it is all objects.
Have you tried a restart of your machine?
If still happening is it on all jobs?
Just in 19 or are other versions affected?
Dose it happen in both OpenGL and Internal 3D engines.
If it is happening all the time then I would try a video driver update.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11