System Information
Operating system: Darwin-17.5.0-x86_64-i386-64bit 64 Bits
Graphics card: NVIDIA GeForce GT 755M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-10.30.25 355.11.10.10.30.120

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
the mesh disappears, when you click on a bone in edit mode.

Exact steps for others to reproduce the error
While in Preview of the shaded material.
The mesh disappears, when you click on a bone in edit mode. It reappears if I exit edit mode and click anywhere in the 3d environment.