System Information
Operating system: Darwin-18.0.0-x86_64-i386-64bit 64 Bits
Graphics card: Intel Iris Pro OpenGL Engine Intel Inc. 4.1 INTEL-12.0.34
Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: rB26bd5ebd42e3
Worked: (optional)
Short description of error
After seemingly a random time, the interface shows just gray balls where there used to be icons for camera, ortographic view and the rotation gizmo. When this happens, it is also imopssible to pick anything in the viewport. The outliner still works and meshes gets highlighted in the viewport when picking in the outliner. But the viewport itself is not responding. This happens every single Blender session started, but sometimes after five minutes, sometimes after thirty. The one time I saw when it happened, it was when I hit the button to create a new texture.
Exact steps for others to reproduce the error
I cannot reproduce the error with a certain command, it seems to happen at random after some use. Maybe when memory starts to become full?