Operating system: Darwin-18.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon VII OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.20
Broken: version: 2.81 (sub 5), branch: master, commit date: 2019-09-03 14:53, hash: rB4c14a7484cf1
Short description of error
3dconnexion mouse works only in one instance of Blender
Exact steps for others to reproduce the error
If I open 2nd instance of Blender 3d mouse does not work in it, only in the original file. This behaviour is same in official 2.8. I have tested this in Rhino for Mac. There Mouse works in both instances, which ever is active of course.
[Based on the default startup or an attached .blend file (as simple as possible)]